关于标点符号和运算符号的英语解释
<P>． period 句号 <BR>， comma 逗号 <BR>： colon 冒号 <BR>； semicolon 分号 <BR>！ exclamation 惊叹号 <BR>？ question mark 问号 <BR>￣ hyphen 连字符 <BR>' apostrophe 省略号；所有格符号 <BR>— dash 破折号 <BR>‘ ’single quotation marks 单引号 <BR>“ ”double quotation marks 双引号 <BR>( )parentheses 圆括号 <BR>[ ]square brackets 方括号 <BR>《 》French quotes 法文引号；书名号 <BR>... ellipsis 省略号 <BR>¨ tandem colon 双点号 <BR>" ditto 同上 <BR>‖ parallel 双线号 <BR>／ virgule 斜线号 <BR>＆ ampersand = and <BR>～ swung dash 代字号 <BR>§ section; division 分节号 <BR>→ arrow 箭号；参见号 <BR>＋ plus 加号；正号 <BR>－ minus 减号；负号 <BR>± plus or minus 正负号 <BR>× is multiplied by 乘号 <BR>÷ is divided by 除号 <BR>＝ is equal to 等于号 <BR>≠ is not equal to 不等于号 <BR>≡ is equivalent to 全等于号 <BR>≌ is equal to or approximately equal to 等于或约等于号 <BR>≈ is approximately equal to 约等于号 <BR>＜ is less than 小于号 <BR>＞ is more than 大于号 <BR>≮ is not less than 不小于号 <BR>≯ is not more than 不大于号 <BR>≤ is less than or equal to 小于或等于号 <BR>≥ is more than or equal to 大于或等于号 <BR>％ per cent 百分之… <BR>‰ per mill 千分之… <BR>∞ infinity 无限大号 <BR>∝ varies as 与…成比例 <BR>√ (square) root 平方根 <BR>∵ since; because 因为 <BR>∴ hence 所以 <BR>∷ equals, as (proportion) 等于，成比例 <BR>∠ angle 角 <BR>⌒ semicircle 半圆 <BR>⊙ circle 圆 <BR>○ circumference 圆周 <BR>π pi 圆周率 <BR>△ triangle 三角形 <BR>⊥ perpendicular to 垂直于 <BR>∪ union of 并，合集 <BR>∩ intersection of 交，通集 <BR>∫ the integral of …的积分 <BR>∑ (sigma) summation of 总和 <BR>° degree 度 <BR>′ minute 分 <BR>″ second 秒 <BR>＃ number …号 <BR>℃ Celsius system 摄氏度 <BR>＠ at 单价</P>
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