各种标点符号的说法 2
文章来源:未知 文章作者:enread 发布时间:2016-07-21 06:17 字体: [ ]  进入论坛
(单词翻译:双击或拖选)
%: percent 百分之……
 
“10%”读作:ten percent
 
: per mill ; per thousand 千分之……
 
“10‰”读作:ten per thousand
 
: infinity1 无限大号
 
“-∞” 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)。


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1 infinity o7QxG     
n.无限,无穷,大量
参考例句:
  • It is impossible to count up to infinity.不可能数到无穷大。
  • Theoretically,a line can extend into infinity.从理论上来说直线可以无限地延伸。
TAG标签: percent infinity angle
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