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Unit5 Pyrometallurgical Extraction Processes (Ⅲ): Reduction |
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下面将常见的一些数学表达式和物理学单位的英语读法列出来,以供参考。 1.常见的数学表达式2/3 two thirds 1/100 a/one hundred 7.2% seven point two percent 0.019 zero point zero one nine ( ) round brackets [ ] square brackets { } braces a+b a plus b (a+b) bracket a plus b bracket closed a±b a plus or minus b ab a multiplied by b a/b a over b a=b a equals b; a is equal to b; a is b a≠b a is not equal to b; a is not b a≡b a is identically equal to b a≈b a is approximately equal to b a>b a is greater than b a<b a is less than b a≯b a is not greater than b a≥b a is greater than or equal to b a≤b a is less than or equal to b a2 a square; a squared; the second power of a; a to the second power a3 a cube; a cubed; cube of a; a to the third; a to the third power a4 a to the fourth power an a to the nth power a-10 a to the minus tenth (power) (a+b)2 a plus b all squared (a/b)2 a over b all squared (a+b-c×d)÷e=f a plus b minus c times d, all divided by e equals f s=vt s equals v times t f(x) the function of x y=f(x) y is function of x dx dee x; differential x f'( x ) f prime x / f dash x / the (first) derivative of f with respect to x f''( x ) f double-prime x / f double-dash x / the second derivative of f with respect to x f'''( x ) triple-prime x / f triple-dash x / the third derivative of f with respect to x 2.常见的物理学单位表5-1 常见物理学单位的英文读法
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