名词中文翻译
中文翻译：比例关系
同义词：
['proportional relationship', 'proportionality']
例句：
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1. The proportion of students in the class is equal to the number of students in the class.
班级中学生的比例等于班级中学生的数量。
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2. The two countries have a proportional relationship in their trade.
这两个国家在贸易上有着成比例的关系。
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3. The company's profits are directly proportional to its sales.
公司的盈利与其销售额成正比例关系。