retainvt.保持;保留;记住;聘请
retained product筛上产品
retained earnest未分配的利润
retaining design防护设计
retaining amount存料量
retaining washer弹簧垫圈
retaining spring止动弹簧
retaining column延缓柱
Retaining spleen保脾
retained calculi残余结石
Retaining ureter留置尿管