名词
中文翻译：比率偏差
同义词：
['deviation', 'deviation from ratio', 'deviation from ratio']
例句：
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1. The ratio of male to female students in the class is about 5:1.
班上男生和女生的比例大约是5:1。
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2. The deviation from the norm was significant.
与标准相比，偏差很大。
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3. The deviation from the original plan was due to unforeseen circumstances.
偏离原计划是由于未预料到的情况。