名词
中文翻译：筛选介质
同义词：
['sieve', 'sieve medium']
例句：
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1. The sieving mediumis used to separate the grains fromthe husks.
筛选介质用于将谷物与壳分离。
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2. The sievingmedium was carefully selected to ensure accuracy inthe analysis.
筛选介质被精心选择以确保分析的准确性。
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3. The sieving medium wasmade of fine mesh material that allowed foreasy separation.
筛选介质由细密的网状材料制成，便于分离。