名词短语
中文翻译：比例规则同义词
同义词：
['proportional rule']
例句：
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1. The engineer used the rule of proportion to design the bridge.
工程师使用比例规则设计了这座桥。
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2. The teacher explained the rule of proportion in his lesson.
老师在他的课上解释了比例规则。
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3. When calculating the area of a square, we can use the rule of proportion.
计算正方形的面积时，我们可以使用比例规则。