phrase : geology : agriculture : metallurgy : waterpower : diet > beneficiate
Contents
No. 1
  cleaning,cleaner
  认真地把一类事物中具有代表性和非常经典的挑选出来。
  选矿过程中,为提高粗选精矿的有用成分含量,使之达到工业质量要求,进一步对粗精矿进行富集的选别作业。
百科辞典
  精选
  cleaning
    」Ingxuon
  精选(c leaning)对粗精矿进行富集或除杂,
  或对混合精矿中各有用组分进行分离的分选作业。精
  选作业次数可以是一次或多次。它可以是分选流程中
  的精选作业,也可以组成精选段或精选厂对粗选段(或
  粗选厂)的粗精矿或混合精矿进行深选富集或分离。
  (王士源)
    
English Expression
  1. :  concentration,  cleaning
  2. n.:  choiceness,  concentrate,  extraction,  _select_ivity,  upgrading,  wale,  carefully chosen,  chosen
  3. v.:  cull,  handpick,  winnow
  4. vt.:  beneficiate,  sift
French Expression
  1. n.  premier choix
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