单词：sifting
[计] 筛选, 淘汰
v move as if through a sieve
v separate by passing through a sieve or other straining device to separate out coarser elements
v check and sort carefully
v distinguish and separate out
sifting的用法和样例：
例句
- They are sifting the wheat from the chaff.他们正往外筛麦壳子。
- He lay on the beach, sifting the sand through his fingers.他躺在沙滩上用手筛砂子玩。
- Mine sieving mesh is a kind of metal mesh components for sifting and filtering.矿筛网是一种用于筛分过滤的金属网状结构元件。
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