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crude grading中文是什么意思

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用"crude grading"造句"crude grading"怎么读"crude grading" in a sentence

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例句与用法

  • The segment , es32 , is a set of sedimentation deposited by gravity flow of the near - shore steep slope sublacustrine fen , is formed out of granule roundstone and also features coarse lithology and crude grading
    Es _ 3 ~ 2段储层属近岸陡坡湖底扇重力流沉积,储层岩性以细砾岩为主,岩性粗、分选性差。
  • The cyclones with short cone are used for crude grading of minerals with heavier specific gravity in gold mines , sand gold mir . es and sulphur ore mines and have such advantages as small ground occupation , high capacity , high operating flexibility , low energy consumption and high movability etc
    短锥分选旋流器用于金矿、砂金矿、硫化矿等比重较大的矿物的粗选作业,具有占地面积小,处理能力大,操作弹性大,能耗低,可移动性强等优点。
用"crude grading"造句  
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