preparator
美 [pr?'pær?t?]
英 [pr?'pær?t?] 
英漢解釋
例句
Practice of decreasing medium consumption in heavy medium preparator
重介選煤廠降低介質消耗的實踐
Application of super rust - eliminator in preparator
超強除鐵器在選煤廠的應用
Technical reformation plan of Cha zhuang Coal Mine preparator
查莊煤礦選煤廠技術改造方案
The practice of dust treatment in preparator
選煤廠粉塵治理實踐