关于标点符号和运算符号.docx

关于标点符号和运算符号

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