帅哥 发表于 2009-1-5 14:49:07
<BR>rotary condenser 掂机<BR>rotary converter 旋转变龙<BR>rotary field 旋转磁场<BR>rotary field moter 旋转磁场电动机<BR>rotary hystersis 回转磁滞<BR>rotary interrupter 旋转断续器<BR>rotary joint 旋转连接<BR>rotary kiln control 回转窑控制<BR>rotary machine 旋转机械<BR>rotary magnet 旋转磁铁<BR>rotary phase converter 旋转式相数变换器<BR>rotary rectifier 旋转整流<BR>rotary relay 旋转继电器<BR>rotary switch 旋转开关<BR>rotary vacumm pump 旋转式真空泵<BR>rotating disk 转盘<BR>rotating field 旋转磁场<BR>rotating field instrument 旋转磁场仪表<BR>rotating field transformer 旋转磁场变压器<BR>rotating field type alternator 旋转场型交立电机<BR>rotating insulator side break switch 旋转绝缘子开关<BR>rotating speed 转速<BR>rotating vector 旋转矢量<BR>rotating voltmeter 旋转电压表<BR>rotational electromotive force 旋转电动势<BR>rotational speed 转速<BR>rotor 转子<BR>rotor angle measurement 转子角度测定<BR>rotor banding 转子带<BR>rotor circuit 转子电路<BR>rotor coil 转子线圈<BR>rotor core 转子铁芯<BR>rotor current 转子电流<BR>rotor displacement angle 转子位移角<BR>rotor displacemet angle measurement 转子角度测定<BR>rotor earth fault protection 转子接地保护<BR>rotor end bell 转子护环<BR>rotor end winding ring 转子护环<BR>rotor field 转子磁场<BR>rotor pack 转子叠片<BR>rotor resistance starter 转子电阻起动器<BR>rotor resistance starting 转子电阻起动<BR>rotor rheostat 转子变阻器<BR>rotor slot 转子线槽<BR>rotor winding 转子绕组<BR>rough approximation 粗近似<BR>rough reading scale 粗略读数刻度<BR>rough service lamp 防震灯<BR>round cable 圆形电缆<BR>round chart 圆形记录纸<BR>round rotor motor 整圆转子电动机<BR>round the clock service 全日供给<BR>rousseau diagram 卢梭图<BR>route 路线<BR>route inspection 线路巡回<BR>route locking 进路锁闭<BR>route planning 线路途径的选定<BR>routh coefficient 劳思系数<BR>routh stability criterion 劳思稳定判据<BR>routine 程序<BR>routine check tests 控制试验<BR>routine tests 单独试验<BR>routiner 定期测试装置<BR>rpm 每分钟转数<BR>rubber covered wire 胶皮绝缘线<BR>rubber gasket 橡胶垫圈<BR>rubber insulated cable 橡皮电缆<BR>rubber insulation 橡皮绝缘<BR>rubber tape 橡胶带<BR>rubbing 摩擦<BR>rubbing contact 摩擦接点<BR>ruhmkoff coil 感应线圈<BR>rule 规程<BR>rumford's photometer 比影光度计<BR>run of river power station 河床式水电站<BR>run of river station 迳两水电厂<BR>run off coefficient 瘤系数<BR>runaway 逸走<BR>runaway speed 飞逸转速<BR>runge kutta's method 龙格 库塔法<BR>running 运转<BR>running balancing 动平衡<BR>running charges 运转费<BR>running clearance 运行间隙<BR>running cost 运转费<BR>running down 惰转<BR>running down time 惰转时间<BR>running out 惰转<BR>running voltage 运行电压<BR>rupturing capacity 断开容量<BR>rural 乡村的<BR>rural electrification 农村电气化帅哥 发表于 2009-1-5 14:49:30
<BR>rush current 冲流<BR>safe load 安全负载<BR>safe operating area 安全工坐<BR>safeguarding 安全措施<BR>safety barrier 安全势垒<BR>safety belt 安全带<BR>safety control 安全控制<BR>safety criterion 安全准则<BR>safety curve 安全曲线<BR>safety device 保安装置<BR>safety factor 安全率<BR>safety factor for dropout 回动可靠系数<BR>safety factor for holding 吸持可靠系数<BR>safety factor for pick up 始动可靠系数<BR>safety factor of insulation 绝缘可靠系数<BR>safety firstengineering 安全技术<BR>safety fuse 安全熔断器<BR>safety gap 安全间隙<BR>safety margin 安全裕度<BR>safety plug 安全塞<BR>safety rope 安全绳<BR>safety rules 安全规程<BR>safety signal 安全信号<BR>safety split pin 安全开尾销<BR>safety switch 安全开关<BR>safety technique 安全技术<BR>safety valve 安全阀<BR>sag 弛度<BR>sal ammoniac cell 氯化氨电池<BR>salient pole 凸极<BR>salient pole generator 凸极发电机<BR>salient pole machine 凸极电机<BR>salient pole rotor 凸极转子<BR>salt 盐<BR>sample 样品<BR>sampled data 取样数据<BR>sampled data control system 抽样数据控制系统<BR>sampling 取样<BR>sampling inspection 抽样检查<BR>sampling period 抽样周期<BR>sampling test 取样试验<BR>sand 砂<BR>sand blast 喷砂装置<BR>sandwich arrangement 层叠布置<BR>sandwich structure 夹层结构<BR>sandwich winding 交错多层形线组<BR>satellite communication 卫星通信<BR>saturable core 饱和铁芯<BR>saturable reactor 饱和电抗器<BR>saturable transformator 饱和变压器<BR>saturated core 饱和铁芯<BR>saturated standard cell 饱和标准电池<BR>saturated steam 饱和蒸汽<BR>saturated vapor 饱和蒸气<BR>saturation 饱和<BR>saturation area 饱和区<BR>saturation characteristic 饱和特性<BR>saturation condition 饱和状态<BR>saturation current 饱和电流<BR>saturation curve 饱和曲线<BR>saturation factor 饱和率<BR>saturation induction 饱和感应<BR>saturation limit 饱和极限<BR>saturation magnetization 饱和磁化<BR>saturation region 饱和区<BR>saturation state 饱和状态<BR>saturation voltage 饱和电压<BR>saw 锯<BR>sawtooth current 锯齿电流<BR>sawtooth electromotive force 锯齿形电动势<BR>sawtooth generator 锯齿波发生器<BR>sawtooth pulse 锯齿形脉冲<BR>sawtooth wave 锯齿形波<BR>sbar magnet 条形磁铁<BR>scalar 标量<BR>scalar product 标积<BR>scalar quantity 标量<BR>scale 比例尺;标度<BR>scale division 刻度<BR>scale factor 标度系数;标度因子<BR>scale length 刻度长度<BR>scale mark 刻度<BR>scale range 刻度范围<BR>scale shape 刻度形状<BR>scale spacing 刻度间距<BR>scale zero 零标度<BR>scaler 计数电路<BR>scaling circuit 计数电路<BR>scanning 扫描<BR>scattered 散射的<BR>scattered beam 散射束<BR>scattered particle 散射粒子<BR>scattered rays 散射线<BR>scattered x rays 散射x射线<BR>scattering angle 散射角<BR>schedule 负载图表<BR>schedule speed 表定速率<BR>scheduled maintenance 计划维修<BR>schematic diagram 原理图<BR>scherbius machine 谢尔比斯电机<BR>scherbius phase advancer 谢尔比斯进相机<BR>scherbius speed control 谢尔比斯速度控制<BR>scherbius system 谢尔比斯方式<BR>schering bridge 沃电桥<BR>schottky effect 肖脱基效应<BR>schrage motor 施拉电动机<BR>science 科学<BR>scintilation counter 闪烁计数器<BR>scintillation 闪烁<BR>scintillation spectrometer 闪烁谱仪<BR>scissors 剪刀<BR>scope 范围<BR>scott connection 斯柯特接线法<BR>scram 急停<BR>scratch pad storage 超高速暂时存贮器<BR>screened cable 屏蔽电缆<BR>screened wire 屏蔽线<BR>screening 屏蔽<BR>screening effect 屏蔽效应<BR>screening factor 屏蔽率<BR>screening turn 屏蔽线匝<BR>screw 螺旋<BR>screw base 螺丝灯座<BR>screw bolt 螺栓<BR>screw cap 螺丝灯座<BR>screw driver 螺丝刀<BR>screw plug fuse 螺塞熔断器<BR>screw socket 爱迪生灯泡头<BR>sea thermal power station 海洋温差发电厂<BR>sea wave power station 海浪发电厂<BR>seal 密封<BR>seal in coil 制动线圈帅哥 发表于 2009-1-5 14:50:12
<BR>seal soldering 密封焊接<BR>sealed end 密封端<BR>sealed motor 密封式电动机<BR>sealing compound 封口膏<BR>sealing current 保持电流<BR>sealing end 电缆端<BR>sealing ring 密封环<BR>sealing wax 封蜡<BR>seam 缝<BR>seam welding 缝焊<BR>search 搜索<BR>search coil 探测线圈<BR>search light 探照灯<BR>seasonal rate schedule 季节价目制<BR>seasoning 老化<BR>secant 正割<BR>secohmmeter 电感表<BR>second 秒<BR>second generation computer 第二代计算机<BR>second order lag element 二次延迟元件<BR>second order system 二次系统<BR>secondaly side 二次侧<BR>secondary 二次的<BR>secondary battery 二次电池<BR>secondary burden 次级负载<BR>secondary cell 二次电池<BR>secondary circuit 二次电路<BR>secondary clock 子钟<BR>secondary coil 二次线圈<BR>secondary current 二次电流<BR>secondary emission 二次发射<BR>secondary failure 波及故障<BR>secondary inductance 二次绕组电感<BR>secondary input 二次输入<BR>secondary instrument 二次侧仪表<BR>secondary light source 辅助光源<BR>secondary memory 辅助存储器<BR>secondary radiation 二次辐射<BR>secondary relay 二次继电器<BR>secondary source 二次光源<BR>secondary standard 二次标准<BR>secondary voltage 二次电压<BR>secondary winding 二次绕组<BR>secondary x rays 二次x射线<BR>section 截面;区城<BR>section insulator 分段绝缘子<BR>section of winding 绕组分段<BR>section switch 分段断路器<BR>sectional area 截面积<BR>sectional drive 分段驱动<BR>sectional view 截面图<BR>sectionalization 分区<BR>sectionalized busbars 分段母线<BR>sectionalized stator 分段定子<BR>sectionalizing swicth 分段开关<BR>sector 区<BR>sector conductor 扇形芯线<BR>sector gate 扇形闸门<BR>sector pattern instrument 扇形仪表<BR>sector shaped conductor 扇形芯线<BR>security 可靠性<BR>security assessment 可靠性估计<BR>sediment 沉淀物<BR>seebeak effect 热电效应<BR>segment 片段<BR>segment mica 整连用云母片<BR>segment pitch 片距<BR>segregation of losses 损耗分离<BR>select 选择<BR>selectance 选择度<BR>selection 选择<BR>selective 选择性的<BR>selective absorption 选择吸收<BR>selective differential relay 选择性差动继电器<BR>selective filter 选择性滤光器<BR>selective negative feedback 选择负反馈<BR>selective photoeffect 选择性光电效应<BR>selective protection 选择性保护<BR>selective radiator 选择辐射体<BR>selective relay 选择性继电器<BR>selectivity 选择性<BR>selectivity characteristic 选择特性<BR>selector 选择器<BR>selector channel 选择通道<BR>selector switch 选择篇关<BR>selenium 硒<BR>selenium rectifier 硒整流<BR>self acting control 自动控制<BR>self actuated controller 直接第器<BR>self adapting computer 自适应计算机<BR>self adjusting 自动蝶的<BR>self adjusting system 自蝶系统<BR>self baking electrode 自焙电极<BR>self balancing potentiometer 自平衡电位计<BR>self capacitance 自电容<BR>self capacity 自电容<BR>self charge 自电荷<BR>self checking code 自校验码<BR>self compensated motor 自补偿电动机<BR>self consistent field 自洽场<BR>self cooled 自冷却的<BR>self cooled transformer 自冷式变压器<BR>self cooling 自冷<BR>self demagnetization 自退磁<BR>self demagnetizing force 自退磁力<BR>self discharge 自放电<BR>self excitation 自励<BR>self excitation winding 自励绕组<BR>self excited 自激的<BR>self excited generator 自励发电机<BR>self excited machine 自励电机<BR>self exciting motor 自励电动机<BR>self holding circuit 自保电路<BR>self holding contact 自保触点<BR>self holding relay 自保继电器<BR>self impedance 固有阻抗<BR>self inductance 自感<BR>self inductance current 自感电流<BR>self induction 自感应<BR>self limiting chain reaction 自限链式反应<BR>self maintained discharge 自持放电<BR>self maintaining nuclear chain reaction 自持链核式反应<BR>self organizing program 自组织程序<BR>self oscillating regime 自激振荡状态<BR>self oscillation 自激振荡<BR>self reactance 固有电抗<BR>self recording 自动记录的<BR>self regulated machine 自第电机<BR>self regulating 自行第的<BR>self regulation 自平衡<BR>self regulation time 自平衡时间<BR>self relocatable program 可自行重新分配程序<BR>self restoring relay 自复归继电器<BR>self saturated magnetic amplifier 自饱和磁放大器<BR>self scattering 自散射<BR>self start synchronous motor 自起动同步电动机<BR>self starter 自动起动器自动启动器<BR>self starting method 自起动法<BR>self supporting aerial cable 自支持式架空电缆<BR>self supporting mast 自立式电杆<BR>self supporting tower 自立式铁塔帅哥 发表于 2009-1-5 14:50:32
<BR>self surge impedance 波动阻抗<BR>self sustained discharge 自持放电<BR>self sustained oscillations 自持振荡<BR>self synchronization 自动同步<BR>self synchronizing method 自同步法<BR>self ventilated motor 自然通风电动机<BR>selsyn 同步机<BR>selsyn motor 自同步电动机<BR>semaphore 信号杆<BR>semaphore signal 横杆信号<BR>semi subterranean power plant 半地下发电厂<BR>semiautomatic 半自动的<BR>semiautomatic signal 半自动信号机<BR>semiautomatic station 半自动发电厂<BR>semiautomatic substation 半自动变电站<BR>semiautomatic system 半自动制<BR>semiautomatic valve 半自动阀<BR>semiautomation 半自动化<BR>semiclosed fuse 半封闭熔线<BR>semiclosed motor 半封闭式电动机<BR>semiclosed slot 半闭口槽<BR>semiconducting crystal 半导体晶体<BR>semiconducting material 半导体材料<BR>semiconductor 半导体<BR>semiconductor amplifier 半导体放大器<BR>semiconductor circuit 半导体电路<BR>semiconductor current limiter 半导体限流<BR>semiconductor device 半导体掐<BR>semiconductor diode 半导体二极管<BR>semiconductor electronics 半导体电子学<BR>semiconductor engineering 半导体技术<BR>semiconductor integrated circuit 半导体集成电路<BR>semiconductor memory 半导体存储器<BR>semiconductor rectifier 半导体整流<BR>semiconductor switching device 半导体开关装置<BR>semiconductor tester 半导体测试器<BR>semidirect illumination 半直接照明<BR>semidirect lighting 半直接照明<BR>semienclosed fuse 半封闭熔线<BR>semienclosed motor 半封闭式电动机<BR>semienclosed switch gear 半封闭式开关装置<BR>semienclosed type 半封闭式<BR>semiindirect illumination 半间接照明<BR>semiindirect lighting 半间接照明<BR>semiopen slot 半开口槽<BR>semiremote control 半遥控<BR>sending end 发送端<BR>sending end impedance 送电端阻抗<BR>sense byte 判断字节<BR>sense of rotation 旋转方向<BR>sense organ 感觉瀑<BR>sensibility 灵敏度<BR>sensing device 传感器<BR>sensing element 敏感元件<BR>sensitive 灵敏的<BR>sensitive time 灵敏时间<BR>sensitive volume 灵敏区<BR>sensitivity 灵敏度<BR>sensitivity control 灵敏度控制<BR>sensitivity curve 灵敏度曲线<BR>sensitivity threshold 灵敏度阈<BR>sensitivity time control 灵敏度 时间控制<BR>sensitizer 敏化剂<BR>sensitometer 感光计<BR>sensor 传感器<BR>separate exciter 独立励磁机<BR>separated excitation 他励<BR>separately excited 他励的<BR>separately excited generator 他励发电机<BR>separately excited motor 他励电动机<BR>separately leaded cable 铅皮分包电缆<BR>separately ventilated machine 外力通风式电机<BR>separation 分离;导线间距离<BR>separator 隔板<BR>sequence 程序<BR>sequence circuit 时序电路<BR>sequence control 顺序控制<BR>sequence control register 顺序控制寄存器<BR>sequence controller 程序控制器<BR>sequence of operation 操滋序<BR>sequence optimization 顺序最佳化<BR>sequence signal 顺序信号<BR>sequence valve 顺序阀<BR>sequential access memory 按序存取存储器<BR>sequential automation 顺序自动化<BR>sequential computer 顺序计算机<BR>sequential control 顺序控制<BR>sequential controller 程序控制器<BR>sequential function 顺序函数<BR>sequential operation 顺序操作<BR>sequential programming 顺序程序设计<BR>sequential programming system 顺序程序设计系统<BR>sequential storage device 顺序存储器<BR>sequential system 顺序系统<BR>serial 连续的<BR>serial adder 串行加法器<BR>serial computer 串行计算机<BR>serial parallel converter 串 并转换器<BR>serial printer 字符式打印机<BR>serial register 串行寄存器<BR>serial storage 串行存储器<BR>serializer 并串数位转换器<BR>series 串联;数列<BR>series capacitor 串联电容器<BR>series characteristic 串激特性<BR>series circuit 串联电路<BR>series coil 串联线圈<BR>series commutator motor 串励换向歧动机<BR>series connected starting motor starting 串联起动电动机起动<BR>series connection 串联<BR>series excitation 串激<BR>series excited machine 串励电机<BR>series expansion 级数展开<BR>series field 串联磁场<BR>series gap 串联火花间隙<BR>series generator 串励发电机<BR>series lamp 串联灯<BR>series lighting 串联照明<BR>series loading 串联加载<BR>series motor 串励电动机<BR>series overcurrent relay 串联过电撂电器<BR>series paralled starting 串并联起动<BR>series parallel 串并联的<BR>series parallel circuit 串并联电路<BR>series parallel connection 串并联<BR>series parallel control 串并联控制<BR>series parallel switch 串并联转换开关<BR>series parallel winding 串并联绕组<BR>series reactor 串联电抗器<BR>series rectifier circuit 串联整羚路<BR>series regulator 串联第器<BR>series resistance 串联电阻<BR>series resistor 串联电阻器<BR>series resonance 串联谐振<BR>series resonance circuit 串联谐振电路<BR>series stabilization 串联稳定化<BR>series system of distribution 串联配电网<BR>series transformer 串联变压器<BR>series tripping 串联跳闸<BR>series winding 串联绕组<BR>series wound generator 串励发电机<BR>series wound motor 串励电动机<BR>service 供电<BR>service ability 供电可靠性<BR>service area 供电区<BR>service capacity 有效容量<BR>service conditions 使用条件<BR>service conductor 用户引入线<BR>service entrance 进线口<BR>service factor 使用系数<BR>service interruption 停电<BR>service life 有效寿命<BR>service line 用户引入线<BR>service program 服务程序<BR>service voltage 供电电压<BR>serving 电缆外皮<BR>servo actuator 伺服传动机构<BR>servo amplifier 伺服放大器<BR>servo computer 伺服计算机<BR>servo control 伺服控制器<BR>servo control mechanism 伺服机构<BR>servo function generator 伺服函数发生器<BR>servo governor 伺服控制器<BR>servo operated valve 伺服传动阀<BR>servo valve 伺服阀<BR>servocontrol 伺服控制<BR>servodrive 伺服传动<BR>servogear 伺服机构<BR>servomechanism 伺服机构<BR>servomotor 伺服电动机<BR>servomultiplier 伺服乘法器<BR>servopotentiometer 伺服电位计<BR>servosystem 伺服系统<BR>set 组<BR>set point 设定值<BR>set point command 给定值指令<BR>set value 设定值<BR>setting 整定<BR>setting basin 沉沙池<BR>setting current 整定电流<BR>setting depth 埋入深度<BR>setting device 设定装置<BR>setting means 整定元件<BR>setting range 整定范围<BR>setting time 整定时间<BR>shackle insulator 茶托绝缘子<BR>shade 灯罩<BR>shade holder 灯罩座<BR>shadow photometer 阴影光度计<BR>shaft 轴<BR>shaft current 轴电流<BR>shaft generator 轴传动发电机<BR>shaft governor 轴蒂器<BR>shaking 摇动<BR>shallow water cable 浅海电缆<BR>shape 形式<BR>shape factor 形状因子<BR>shape parameter 形状参数<BR>shaping circuit 整形电路<BR>shaping filter 整形滤波器<BR>shaping network 整形网路<BR>shared file 共用文件<BR>sharp bend 弯管<BR>sharp tuning 锐党<BR>sharpness of resonance 谐振锐度<BR>sharpness of tuning 党锐度<BR>sheath 铠装<BR>sheath losses 负载损耗<BR>sheath of cable 电缆外皮<BR>sheathed cable 铠装电缆<BR>sheathed wire 铠装线<BR>sheathing wire 铠装线<BR>sheet copper 铜片<BR>sheet dielectric 片状电介质<BR>sheet iron 薄钢板<BR>sheet steel 薄钢板<BR>shelf 支架帅哥 发表于 2009-1-5 14:50:44
<BR>shelf life 贮藏寿命<BR>shell 壳<BR>shell core 外铁型铁心<BR>shell type core 外铁型铁心<BR>shell type magnetic circuit 外铁型磁路<BR>shell type transformer 外铁型变压器<BR>shellac 虫胶<BR>sherardizing 粉镀锌<BR>shield 屏蔽<BR>shielded cable 屏蔽电缆<BR>shielded coil 屏蔽线圈<BR>shielded electromagnet 屏蔽电磁铁<BR>shielded galvanometer 屏蔽式检疗<BR>shielded wire 屏蔽线<BR>shielding 屏蔽<BR>shielding case 屏蔽壳<BR>shielding effect 屏蔽效应<BR>shielding electrode 屏蔽电极<BR>shielding material 屏蔽材料<BR>shielding winding 屏蔽线圈<BR>shift 移位<BR>shift register 移位寄存器<BR>shifting magnetic field 移动磁场<BR>shifting register 移位寄存器<BR>shiftless register 无移位寄存器<BR>shock absorber 缓冲器<BR>shock current 冲荤流<BR>shock excitation 冲护励<BR>shock excited oscillatory circuit 冲护励振荡电路<BR>shock pressure 冲还力<BR>shock wave 冲花<BR>shop instruction 工场说瞄<BR>shop test 工厂试验<BR>shore end cable 浅海电缆<BR>short circuit 短路<BR>short circuit admittance 短路导纳<BR>short circuit braking 短路制动<BR>short circuit breaking capacity 短路遮断容量<BR>short circuit brush 短路电刷<BR>short circuit characteristic 短路特性<BR>short circuit current 短路电流<BR>short circuit current limitation 短路限流<BR>short circuit current to earth 对地短路电流<BR>short circuit curve 短路特性<BR>short circuit generator 短路发电机<BR>short circuit impedance 短路阻抗<BR>short circuit making capacity 短路时闭合容量<BR>short circuit protection 短路保护<BR>short circuit ratio 短路比<BR>short circuit subtransient time constant 短路初期瞬变时间常数<BR>short circuit test 短路试验<BR>short circuit time constant of primary windings 一次绕组短路时间常数<BR>short circuit voltage 短路电压<BR>short circuit winding 短路线圈<BR>short circuiter 短路器<BR>short circuiting device 短路器<BR>short circuiting ring 短路环<BR>short pitch 短节距<BR>short pitch factor 短节距因数<BR>short pitch winding 短节距绕组<BR>short time duty 短时运行方式<BR>short time rating 短时额定<BR>short time test 短时试验<BR>short wave 短波<BR>short wave receiver 短波接收机<BR>shot effect 散粒效应<BR>shower 簇射<BR>shower particle 簇射粒子<BR>shrink ring of commutator 换向谱环<BR>shunt 分路器分流<BR>shunt arc lamp 分路弧光灯<BR>shunt box 分龄<BR>shunt characteristic 并励特性<BR>shunt circuit 分路<BR>shunt coil 分吝圈<BR>shunt dynamo 并励发电机<BR>shunt excitation 并励<BR>shunt excitation loss 并励损耗<BR>shunt excited machine 并励电机<BR>shunt field relay 磁分路式继电器<BR>shunt generator 并励发电机<BR>shunt impedance 并联阻抗<BR>shunt inductance 并联电感<BR>shunt leads 分笼线<BR>shunt loading 并联载荷<BR>shunt motor 并励电动机<BR>shunt ratio 分路系数<BR>shunt reactor 分馏力<BR>shunt rectifier circuit 并联整羚路<BR>shunt regulator 并联第器<BR>shunt resistance 分羚阻<BR>shunt resistor 分路器分流<BR>shunt transformer 电压互感器<BR>shunt tripping 电压跳闸<BR>shunt winding 并联线圈<BR>shunt wound arc lamp 分路弧光灯<BR>shunt wound generator 并励发电机<BR>shunt wound motor 并励电动机<BR>shunting resistance 分羚阻<BR>shut down 停止运转<BR>shut down procedure 停止程序<BR>side 边<BR>side anchor 侧锚<BR>side conductor rail 旁置接触轨<BR>side guy 侧拉线<BR>side lamp 侧面灯<BR>side light 侧面灯<BR>side pole 侧杆<BR>side stroke 侧击<BR>sideways feed 横向馈给<BR>siemens 闻子<BR>sight check 同位穿孔检索<BR>sign 符号<BR>sign digit 符号数字<BR>sign inverter 符号反相器<BR>sign lighting 广告照明<BR>sign lighting transformer 氖灯用变压器<BR>signal 信号<BR>signal aspect 信号式样<BR>signal button 信号按钮<BR>signal circuit 信号电路<BR>signal conversion 信号转换<BR>signal converter 信号转换器<BR>signal current 信号电流<BR>signal detector 信号检出器<BR>signal device 信号装置<BR>signal distortion 信号失真<BR>signal flow diagram 信号良<BR>signal generator 信号发生器<BR>signal lamp 信号灯<BR>signal level 信号电平<BR>signal relay 信号继电器<BR>signal reproduction 信号再生<BR>signal selector 信号选择器帅哥 发表于 2009-1-5 14:50:55
<BR>signal to noise ratio 信号噪声比<BR>signal transducer 信号变换器<BR>signal transfer characteristic 信号传递特性<BR>signal winding 控制绕组<BR>signaling lamp 信号灯<BR>silencer 消声器<BR>silent arc 无声电弧<BR>silent discharge 无声放电<BR>silhouette effect 嘻豪特效应<BR>silica lamp 石英灯<BR>silicagel 硅胶<BR>silicon 硅<BR>silicon bronze 硅铜<BR>silicon bronze wire 硅青铜线<BR>silicon controlled rectifier 可控硅整联件<BR>silicon diode 硅二极管<BR>silicon insulation 硅尸绝缘<BR>silicon junction transister 硅面结型晶体管<BR>silicon on sapphire technology 蓝宝石上外延硅技术<BR>silicon photocell 硅光电池<BR>silicon rectifier 硅整流<BR>silicon resin 硅尸<BR>silicon solar cell 硅太阳电池<BR>silicon steel lamination 硅钢板<BR>silicon steel plate 硅钢板<BR>silicon transistor 硅晶体管<BR>silicon unilateral switch 硅单向开关<BR>silit heating element 碳硅发热元件<BR>silk and cotton covered cable 丝棉包电缆<BR>silk covered cable 丝包电缆<BR>silk covered wire 丝包线<BR>silk covering 丝包覆盖层<BR>silver 银<BR>silver tipped contact 银接点<BR>silver zinc accumulator 银锌蓄电池<BR>silvering 镀银<BR>similarity 相似<BR>similarity theorem 相似性定理<BR>similitude 相似<BR>similitude method 相似法<BR>simple buffering 简单缓冲法<BR>simple catenary suspension 单吊线悬垂<BR>simple event 简单事件<BR>simple function 单值函数<BR>simple harmonic current 纯正弦电流<BR>simple harmonic quantity 正弦量<BR>simple parallel winding 简单并联绕组<BR>simple sinusoidal current 纯正弦电流<BR>simple sinusoidal quantity 正弦量<BR>simplex winding 单式绕组<BR>simulation 模拟<BR>simulation circuit 模似电路<BR>simulator 模拟装置<BR>simultaneity 同时性<BR>simultaneity factor 同时系数<BR>sine 正弦<BR>sine cosine potentiometer 正弦 余弦电位计<BR>sine curve 正弦曲线<BR>sine galvanometer 正弦电疗<BR>sine potentiometer 正弦电位计<BR>sine wave 正弦波<BR>sine wave generator 正弦波发电机<BR>sine wave oscillations 正弦波振动<BR>singing 振鸣<BR>singing electric arc 歌电弧<BR>single 单独的<BR>single acting autoreclosing 单动重合闸<BR>single address code 单地址码<BR>single anode mercury arc rectifier 单阳极水银整流<BR>single anode rectifier 单阳极整流<BR>single busbar system 单母线系统<BR>single circuit line 单回路线<BR>single coil filament 单簧灯丝<BR>single conductor 单导线<BR>single contact 单触点<BR>single control 单独控制<BR>single cord 单线塞绳<BR>single core cable 单芯电缆<BR>single cotton covered wire 单层纱包线<BR>single crystal 单晶<BR>single crystal germanium 单晶锗<BR>single element relay 一元继电器单元件继电器<BR>single fluid cell 单液电池<BR>single impulse 单脉冲<BR>single insulator string 单列绝缘子串<BR>single layer coil 单层线圈<BR>single layer winding 单层绕组<BR>single line 单线线路<BR>single line diagram 单线图<BR>single loop 单环路<BR>single member stay pole 拉线单杆<BR>single path magnetic circuit 单路磁路<BR>single path magnetic core 单路磁路<BR>single phase 单相的<BR>single phase admittance 单相导纲<BR>single phase alternating current 单相交流<BR>single phase alternator 单相发电机<BR>single phase autoreclosing 单相自动重合闸<BR>single phase circuit 单相电路<BR>single phase commutator machine 单相整劣电机<BR>single phase commutator motor 单相整劣电动机<BR>single phase commutator motor with self excitation 自励单相换向歧动机<BR>single phase condenser motor 单相电容起动电动机<BR>single phase current 单相电流<BR>single phase generator 单相发电机<BR>single phase impedance 单相阻抗<BR>single phase induction motor 单相感应电动机<BR>single phase line 单相线路<BR>single phase machine 单相电机<BR>single phase motor 单相电动机<BR>single phase power factor meter 单相相位计<BR>single phase short circuit 单相短路<BR>single phase shunt motor 单相并激电动机<BR>single phase synchronous generator 单相同步发电机<BR>single phase synchronous motor 单相同步电动机<BR>single phase system 单相系统<BR>single phase transformer 单相变压器<BR>single phase watt hour meter 单相电度表<BR>single phase wattmeter 单相瓦特计<BR>single phasing 单相运行<BR>single point earthing 单点接地<BR>single point grounding 单点接地<BR>single pole 单柱<BR>single pole cut out 单极熔断器<BR>single pole double throw switch 单刀双投开关<BR>single pole single throw switch 单刀单投开关<BR>single pole switch 单极开关<BR>single potential 电极电位<BR>single rail track territory 单轨区间<BR>single range instrument 单量程仪表<BR>single stroke bell 单荤铃<BR>single sweep 单扫描<BR>single tank circuit breaker 单桶断路器<BR>single tank switch 单桶开关<BR>single wire 单线<BR>single wire circuit 单线电路<BR>sinusoidal 正弦曲线的<BR>sinusoidal current 正弦电流帅哥 发表于 2009-1-5 14:51:12
<BR>sinusoidal wave 正弦波<BR>siphon 虹吸管<BR>six phase 六相的<BR>skin effect 开尔芬效应<BR>skip 跳跃<BR>slab 音节<BR>slability domain 稳定区域<BR>slack 松弛部分<BR>slant 倾斜<BR>slate 石板<BR>slave clock 子钟<BR>slave relay 中间继电器<BR>sleeper 枕木<BR>sleet 冰凌<BR>sleet jump 冰凌的混线现象<BR>sleet load 复冰负荷<BR>sleeve 套管<BR>sleeve joint 套管接头<BR>sleeving 套管<BR>slew time 旋转时间<BR>slide coil 滑动接点线圈<BR>slide contact 滑动接触<BR>slide rheostat 滑动变阻器<BR>slide rule 计算尺<BR>slide valve 滑阀<BR>slide wire 滑线<BR>slide wire bridge 滑线电桥<BR>slide wire potentiometer 滑线式电位计<BR>slider 滑动片<BR>sliding 滑动<BR>sliding contact 滑动接触<BR>sliding electrode 滑动电极<BR>slime 泥<BR>slip 滑动<BR>slip frequency 差频<BR>slip measurement 滑动测定<BR>slip meter 转差计<BR>slip regulator 转差率第器<BR>slip ring 集电环<BR>slip ring brushes 滑环电刷<BR>slip ring motor 绕线式转子感应电动机<BR>slip ring starter 滑环启动器<BR>slip stability 滑动稳定度<BR>slit 缝隙<BR>slope 倾斜<BR>sloping wavefront 倾斜波阵面<BR>slot 槽<BR>slot field 槽磁场<BR>slot insulation 槽绝缘<BR>slot leakage 槽漏泄<BR>slot leakage field 槽漏泄磁场<BR>slot meter 预付式电度表<BR>slot packing 线槽衬垫<BR>slot pitch 齿距<BR>slot ripples 齿谐波<BR>slot space factor 线槽占空系数<BR>slot system 槽渠制<BR>slot wedge 槽楔<BR>slot width 槽宽<BR>slotted armature 有槽电枢<BR>slotted core 有槽铁芯<BR>slotted core armature 有槽电枢<BR>slow 迟的<BR>slow acting relay 缓动继电器<BR>slow blow fuse 缓动式熔断器<BR>slow neutrons 慢中子<BR>slow operating relay 缓动继电器<BR>slow release relay 缓释继电器<BR>slowing down area 减速面积<BR>slowing down power 减速能<BR>slug 芯子<BR>slug tuner 铁芯党器<BR>sluice 水闸<BR>small oil volume circuit breaker 贫油断路器<BR>small signal parameter 小信号参数<BR>smelting furnace 熔化炉<BR>smf 系统管理功能<BR>smoke 烟<BR>smoke tube boiler 火管锅炉<BR>smooth 平滑的<BR>smooth armature 平滑电枢<BR>smooth bodied conductor 平滑导线<BR>smooth core 平滑铁芯<BR>smooth core armature 平滑电枢<BR>smooth curve 平滑曲线<BR>smooth line 平滑线<BR>smooth rotor 平滑铁芯转子<BR>smoothing 平滑<BR>smoothing capacitor 平滑电容器<BR>smoothing capacity 平滑电容<BR>smoothing device 平滑装置<BR>smoothing filter 平滑滤波器<BR>smoothing quality 平滑质<BR>snap action contact 突动触点<BR>snap switch 快动开关<BR>sneak current 寄生电流<BR>socket 插口<BR>soda cell 苛性苏打电池<BR>sodium 钠<BR>sodium graphite reactor 钠石墨堆<BR>sodium lamp 钠灯<BR>sodium vapor lamp 钠蒸汽灯<BR>soft iron oscillograph 电磁示波器<BR>soft soldering 软钎焊<BR>softening 软化<BR>softening temperature 软化温度<BR>software 软设备<BR>software catalog 软件目录<BR>solar battery 太阳电池<BR>solar cell 太阳电池<BR>solar energy 太阳能<BR>solar power plant 太阳能发电厂<BR>solar power station 太阳能发电厂<BR>solder 焊料<BR>soldered connection 焊接接头<BR>soldered joint 焊接接头<BR>soldering 焊接<BR>soldering flux 焊料<BR>soldering iron 烙铁<BR>soldering lamp 焊接灯<BR>soldering temperature 焊接温度<BR>sole plate 底板<BR>solenoid 螺线管<BR>solenoid brake 电磁制动器<BR>solenoid coil 电磁线圈<BR>solenoid drive 电磁驱动<BR>solenoid operated actuator 电磁操构帅哥 发表于 2009-1-5 14:51:34
<BR>solenoid operated closing mechanism 电磁闭合装置<BR>solenoid relay 插棒式继电器<BR>solenoid valve 电磁阀<BR>solid 固体<BR>solid cable 胶质浸渍纸绝缘电缆<BR>solid carbon 实心炭棒<BR>solid conductor 实心导线<BR>solid coupled drive 刚性联接驱动<BR>solid earthed neutral 直接接地中性点<BR>solid insulator 固体绝缘子<BR>solid phase welding 压力焊<BR>solid rotor 整块转子<BR>solid state computer 第二代计算机<BR>solid state dielectric 固体电介体<BR>solid state electronics 固体电子技术<BR>solid state laser 固态激光器<BR>solid state relay 固体继电器<BR>solid wire 单线<BR>solidly grounded neutral 直接接地中性点<BR>solubility 溶度<BR>solution 溶解<BR>solvent 溶媒<BR>solvent cleaning 溶液净化<BR>sonde 探头<BR>soot 烟灰<BR>sort merge program 分类归并程序<BR>sort program 分类程序<BR>sorter 分类器<BR>sound effect 声效应<BR>sound energy power generation 声能发电<BR>sound insulation 声绝缘<BR>sound recorder 录音机<BR>sound wave 声波<BR>source 源<BR>source impedance 电源阻抗<BR>source of energy 能源<BR>source of power 动力源<BR>source of sound 音源<BR>source range 中子源区段<BR>south pole 南极<BR>space character 空白字符<BR>space charge 空间电荷<BR>space charge density 空间电荷密度<BR>space charge effect 空间电荷效应<BR>space charge zone 空间电荷区<BR>space factor 占空系数<BR>space factor of winding 线圈填充系数<BR>space permeability 空间磁导率<BR>space potential 空间电位<BR>spacer 撑杆<BR>spacing battery 浮充电池<BR>spacing wave 间隔信号<BR>span 柱间距<BR>span length 杆间距离<BR>span wire 拉线<BR>span wire suspension 拉线悬挂<BR>spanner 扳手<BR>spare 备用的<BR>spare cable 备份电缆<BR>spare capacity 备用容量<BR>spare equipment 备用设备<BR>spare line 备用线路<BR>spare parts 备件<BR>spare wire 备用线<BR>spares 备件<BR>spark 火花<BR>spark ball 火花球<BR>spark breakdown 火花哗<BR>spark capacitor 灭火花用电容器<BR>spark chute 消弧室<BR>spark coil 电火花线圈<BR>spark counter 火花计数器<BR>spark discharge 火花放电<BR>spark extinguisher 火花消除器<BR>spark frequency 火花放电振荡频率<BR>spark gap 火花隙<BR>spark length 火花间隙<BR>spark micrometer 火花放电显微计<BR>spark potential 火花电位<BR>spark quench network 消弧电路<BR>spark quenching circuit 消弧电路<BR>spark resistance 火花电阻<BR>spark suppression 火花抑制<BR>spark voltage 火花电压<BR>sparking ball 火花球<BR>sparking distance 火花间隙<BR>sparking of brushes 电刷火花<BR>sparking plug 火花塞<BR>sparking voltage 跳火电压<BR>sparkless commutation 无火花整流<BR>sparkless commutation zone 无火花整柳域<BR>sparkover 闪络<BR>special purpose computer 专用计算机<BR>specific 比<BR>specific capacitance 单位电容<BR>specific conductance 电导率<BR>specific consumption 单位消耗量<BR>specific dielectric strength 比绝缘强度<BR>specific gravity 比重<BR>specific heat 比热<BR>specific inductive capacity 相对介电常数<BR>specific ionization 比电离<BR>specific losses 比损耗<BR>specific permeability 比导磁率<BR>specific power 比功率<BR>specific resistance 电阻率帅哥 发表于 2009-1-5 14:51:42
<BR>specific routine 特殊程序<BR>specific speed 比速<BR>specific susceptibility 比磁化率<BR>specific utilization coefficient 单位利用率<BR>specific viscosty 比粘度<BR>specification 说瞄<BR>specified breakaway torque 规定断开转矩<BR>spectral 谱的<BR>spectral density 谱密度<BR>spectral function 谱函数<BR>spectral reflectance 光谱反射系数<BR>spectral reflection factor 光谱反射系数<BR>spectral transmission factor 光谱透射系数<BR>spectral transmittance 光谱透射系数<BR>spectrometer 分光计<BR>spectrophotometer 分光光度计<BR>spectroscope 分光镜<BR>spectrum 谱<BR>spectrum analyzer 频谱分析器<BR>spectrum line 谱线<BR>specular reflection 规则反射<BR>speed 速度<BR>speed at continuous rating 持续制功率下的速度<BR>speed at one hour rating 小时制功率下的速度<BR>speed characteristic 转速力矩特性<BR>speed characteristic curve 速度特性曲线<BR>speed control 速度第<BR>speed control valve 速度控制阀<BR>speed controller 蒂器<BR>speed detection 速度检出<BR>speed distance curve 速度距离曲线<BR>speed droop 速度下降率<BR>speed electromotive force 速率电动势<BR>speed governor 蒂器<BR>speed indicator 速度计<BR>speed limiting 速度极限<BR>speed limitting device 限速装置<BR>speed meter 速度计<BR>speed of discharge 放电速度<BR>speed of response 响应速度<BR>speed reducer 减速器<BR>speed regulating rheostat 蒂变阻器<BR>speed regulation 速度第<BR>speed regulator 蒂器<BR>speed relay 速度继电器<BR>speed time curve 速度时间曲线<BR>speed torque characteristic 转速力矩特性<BR>speed voltage generator 测速发电机<BR>speedometer 速度计<BR>sphere 球<BR>sphere gap 球放电器球隙避雷器<BR>spherical 球的<BR>spherical bearing 球面轴承<BR>spherical candlepower 球面烛光<BR>spherical mirror 球面镜<BR>spherical photometer 球形光度计<BR>spherometer 球面仪<BR>spider 电枢辐臂<BR>spider web coil 扁平蛛网形线圈<BR>spill shield 遮光栅<BR>spin effect 自旋效应<BR>spin moment 自转力矩<BR>spindle 轴<BR>spinel 尖晶石<BR>spinning electron 旋转电子<BR>spinning reserve 运转备用<BR>spiral 螺旋形的<BR>spiral cased water turbine 蜗壳式水轮机<BR>spiral coil 螺旋形线圈<BR>splash proof machine 防溅型电机<BR>splice 电缆接头<BR>splice box 电缆分线箱<BR>spliced pole 叠接电杆<BR>splicer 接合器铅工<BR>splicing 接合<BR>splicing ear 连接端子<BR>splicing fitting 接线夹<BR>splicing sleeve 连接套管<BR>split brush 分裂式电刷<BR>split core 分裂铁心<BR>split field motor 分串激电动机<BR>split phase induction motor 分相感应电动机<BR>split phase motor 分相电动机<BR>split phase starting 分相起动<BR>split pole 分裂磁极<BR>split pole machine 分裂磁极电机<BR>split secondary 有抽头的次级线圈<BR>split stator 分段定子<BR>split winding 阶梯绕组<BR>sponge 海绵<BR>spongy lead 海绵状铅<BR>spool 绕线管<BR>spool insulator 圆柱形绝缘子<BR>spooler 绕线机<BR>spooling machine 绕线机<BR>sporadic reflection 异常反射<BR>spot 斑点<BR>spot welding 点焊<BR>spot welding machine 点焊机<BR>spread factor 分布系数<BR>spring 弹簧<BR>spring contact 弹簧接触<BR>spring jack 弹簧塞孔<BR>spur 木杆接桩<BR>spurious capacitance 寄生电容<BR>spurious modulation 寄生灯<BR>sputtering 喷涂<BR>square 正方形<BR>square coil 矩形线圈<BR>square law modulator 平方律灯器<BR>square loop ferrite 矩形磁滞环铁氧体<BR>square loop material 矩形磁滞回线材料<BR>square meter 平方米<BR>square signal 矩形波信号<BR>square wave 矩形波<BR>square wave modulation 方波灯<BR>squirrel cage 鼠笼绕组<BR>squirrel cage induction motor 鼠笼式电动机<BR>squirrel cage motor 鼠笼式电动机<BR>squirrel cage repulsion motor 鼠笼式推斥电动机<BR>squirrel cage rotor 鼠笼式转子<BR>squirrel cage winding 鼠笼绕组<BR>stability 稳定性<BR>stability analysis 稳定性分析<BR>stability area 稳定区域<BR>stability conditions 稳定性条件<BR>stability criterion 稳定度判据<BR>stability domain border 稳定区域界限<BR>stability improvement 稳定度改进<BR>stability limit 稳定极限<BR>stability margin 稳定裕度<BR>stability region 稳定范围<BR>stability regions determination 稳定区域的确定<BR>stability test 稳定度试验<BR>stability zone 稳定区域<BR>stabilization 稳定化<BR>stabilized current source 稳定电链<BR>stabilized power supply 稳定电源供应<BR>stabilizer 稳定器<BR>stabilizing circuit 稳定电路<BR>stabilizing feedback 稳定反馈<BR>stabilizing winding 稳定绕组<BR>stabilovolt 辉光放电稳压管<BR>stable 稳定的<BR>stable conditions 稳定状态<BR>stable equilibrium 稳定平衡帅哥 发表于 2009-1-5 14:51:52
<BR>stable equilibrium position 稳定平衡位置<BR>stable limit cycle 稳定极限周期<BR>stable node 稳定节点<BR>stable position 稳定位置<BR>stable state 稳态<BR>stack 烟囱<BR>stack pointer 栈指示器<BR>stage 级<BR>stage circuit 分级电路<BR>stage lighting 舞台照明<BR>staggering 交错<BR>stalled rotor 失速转子<BR>stalling torque 停转转矩<BR>stalloy 硅钢片<BR>stand 台<BR>stand alone emulator 独立仿真器<BR>stand alone program 独立程序<BR>standard 标准规格<BR>standard ammeter 标准安培计<BR>standard cable 标准电缆<BR>standard candle 标准烛光<BR>standard capacitance 标准电容<BR>standard capacitor 标准电容器<BR>standard cell 标准电池<BR>standard condenser 标准电容器<BR>standard condition 标准状态<BR>standard copper 标准铜<BR>standard current transformer 标准电隶感器<BR>standard deviation 标准偏差<BR>standard electrode 标准电极<BR>standard electrode potential 标准电极电位<BR>standard frequency 标准频率<BR>standard instrument 标准仪表<BR>standard lamp 标准灯炮<BR>standard load 正常负载<BR>standard meter 标准仪表<BR>standard potential transformer 标准电压互感器<BR>standard potentiometer 标准电位计<BR>standard refraction 标准折射<BR>standard resistance 标准电阻<BR>standard resistor 标准电阻器<BR>standard response time 标准响应时间<BR>standard signal oscillator 标准信号振荡器<BR>standard temperature 标准温度<BR>standard unit 标准单元<BR>standard voltage divider 标准分压器<BR>standard wave 标准波<BR>standard wire gage 标准线规<BR>standby battery 备用电池组<BR>standby lighting 备用照明<BR>standby power 储用功率<BR>standby unit 备用机组<BR>standing charge 固定费用<BR>standing wave 驻波<BR>star 星<BR>star connection 星形结线<BR>star connection circuit 星形电路<BR>star delta connection 星形三角形结线<BR>star delta starter 星形三角形起动器<BR>star delta starting 星形三角形起动<BR>star delta switch 星形三角开关<BR>star delta switching starter 星形三角形起动器<BR>star delta transformation 星形三角变换<BR>star quad 星绞四线组<BR>star quad cable 星绞四线电缆<BR>star star connection 星形星形结线<BR>star to delta convertion 星形三角结线变换<BR>star voltage 星形接线相电压<BR>start 起动<BR>start stop transmission 起止传输<BR>starter 启动器<BR>starter rheostat 变阻起动器<BR>starting 起动<BR>starting capacitor 起动电容器<BR>starting characteristic 起动特性<BR>starting compensator 自耦变压起动器<BR>starting contactor 起动接触器<BR>starting current 起动电流<BR>starting current ratio 起动电寥<BR>starting device 起动装置<BR>starting electrod 起动电极<BR>starting element 起动元件<BR>starting moment 起动转矩<BR>starting motor 起动电动机<BR>starting power 起动功率<BR>starting reactor 起动电控器<BR>starting relay 起动继电器<BR>starting resistance 起动电阻<BR>starting rheostat 变阻起动器<BR>starting signal 起动信号<BR>starting switch 起动开关<BR>starting test 起动试验<BR>starting time 起动时间<BR>starting torque 起动转矩<BR>starting transformer 起动变压器<BR>starting up 开机<BR>starting winding 起动绕组<BR>state equation 状态方程<BR>state of equilibrium 平衡状态<BR>state vector 状态向量<BR>statement identifier 语句标识符<BR>static 静止的<BR>static adhesive weight 静粘着重量<BR>static balancer 静止平衡器<BR>static capacitor 静电电容器<BR>static characteristic 静态特性<BR>static characteristic curve 静态特性曲线<BR>static charge 静电荷<BR>static condenser 静电电容器<BR>static control 静态控制<BR>static convertor 静止变流<BR>static deviation 静态偏差