名词
中文翻译：差分商
同义词：
['difference quotient', 'ratio of differences', 'rate of change']
例句：
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1. The quotient of difference between the two numbers is 2.
两个数之间的差商是2。
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2. The rate of change in temperature is 0.5 degrees Celsius per hour.
温度每小时变化0.5度。
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3.The ratio of differences between the lengths of two sides of a triangle is sqrt(3)/2.
三角形两边长度之差的比例是根号3/2。