名词
中文翻译：中点规则
同义词：
['median rule', 'median line']
例句：
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1. The midpoint rule isused to find the average of a setof numbers.
中点规则用于计算一组数字的平均值。
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2. In statistics, the midpoint rule is used to determine the meanvalue of a distribution.
在统计学中，中点规则用于确定分布的均值值。
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3. The midpoint rule is also usedin engineering to calculate the distance between twopoints on a curve.
中点规则也在工程中用于计算曲线上两点之间的距离。