各种符号的英文读法
"exclainmation mark"="!"
"at"="@"
"numbersign"="#"
"dollar"="$"
"percent"="%"
"caret"="^"
"ampersand"="&"
"asterisk"="*"
"parenleft"="("
"parenright"=")"
"minus"="-"
"underscore"="_"
"equal"="="
"plus"="+"
"bracketleft"="["
"braceleft"="{"
"bracketright"="]"
"braceright"="}"
"semicolon"=";"
"colon"=":"
"quote"="""
"tilde"="~"
"backslash"="\"
"bar"="|"
"comma"=","
"less"="<"
"period"="."
"greater"=">"
"slash"="/"
"question"="?"
"space"=" "
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 ̄ 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
Angle bracket
{} Brace
《 》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