各种符号在英语中如何表达
+ 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 greater 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
℃ Celsius system
摄氏度
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