Preap布列PREabbr.Petroleum Refining Engineer炼油工程师preaeration预曝气premenstrum月经前期Pre-slaker预消化器Preadipoeyte前脂肪细胞pre existentadj.先在的preozonation预臭氧化preadipocyte前成脂肪细胞pre - mill预磨机preorganizer先行组织者premaxillaryadj.前颌骨的颌骨前的.