| ||||||||
|
%: percent 百分之……
“10%”读作：ten percent
‰ : per mill ; per thousand 千分之……
“10‰”读作：ten per thousand
“－∞” 读作：negative infinity
∝: varies as 与...成比例
“X∝Y”读作：X varies as Y
√￣: square root 平方根
“√￣16=4”读作：The square root of sixteen is four.
3√￣: cube root 立方根
“3√￣27=3”读作：The cube root of 27 is 3.
∵: since; because 因为
“∵1+1=2”读作：because one plus one equals two
∴: hence; therefore 所以
“∴1<2”读作：hence one is less than two
∠: angle 角
“∠A”读作：angle A
“∠A +∠B+∠C=180°”
读作：The measure of angle A plus angle B plus angle C equals 180 degrees.
⌒: semicircle 半圆
“⌒AB”读作：semicircle AB
⊙: circle 圆
“⊙A”读作：circle A
○: circumference 圆周
“○=π×d”读作：Pi multiplied by d equals circumference.
π: pi constant 圆周率
“π×d”读作：pi multiplied by d
△: triangle 三角形
“△ABC”读作：triangle ABC
What is the area of triangle ABC? 求三角形ABC的面积。
⊥: perpendicular to 垂直于
“A⊥B”读作：A is perpendicular to B.
//: parallel to 平行于
Line AB is parallel to line CD.
∪: union of 并，合集
“A∪B”读作：the union of A and B
∩: intersection of 交，通集
“A∩B”读作：The intersection of A and B
∫: the integral of ……的积分
“∫x”读作：the integral of x
∑: summation of 总和
“∑x”读作：the summation of x
equation 方程式、等式
“y = kx” 读作：
Y varies as x.
K is "the constant of variation.
y与x成正比（y是x的正比函数），k是常数。
“y = k/x”读作：
Y varies inversely as x.
y与x成反比例（y是x的反比例函数）。
点击  收听单词发音
|
||||||||
上一篇：各种标点符号的说法 1 下一篇：各种标点符号的说法 3 |
||||||||
- 发表评论
-
- 最新评论 进入详细评论页>>
