| 单词 | 粗筛 |
| 释义 | 〔screen〕To separate or sift out (fine particles of sand, for example) by means of a sieve or screen.筛选：用筛子或粗筛分离或筛选（例如优良的沙子）〔screen〕A coarse sieve used for sifting out fine particles, as of sand, gravel, or coal.筛子：一种粗筛，用于筛选优良的东西，比如沙子、碎石或者煤〔riddle〕A coarse sieve, as for gravel.粗筛：粗眼筛子，如用来筛石子〔screening〕screenings (used with a sing. or pl. verb)Refuse, such as waste coal, separated by a screen. screenings （与单数或复数动词连用）废物：用粗筛分离开的残渣，例如废煤 |
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