名词
中文翻译：筛选率
同义词：
['separation rate', 'separation efficiency']
例句：
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1. Thesieving rate of the sand isvery high.
沙子的筛选率非常高。
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2. Thenew machine has a much higher sieving rate than the old one.
新机器的筛选率比旧机器高得多。
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3.The sieving rate affects the qualityof the final product.
筛选率影响最终产品的质量。