常見例句雙語例句Ball lock retainers are completely processed by CNC machining.我們的球鎖固定板完全採用數(shù)控機牀加工。Porous polyimide materials used for ball-bearing retainers have been recieved a great attention in aviation industry.微孔聚醯亞胺材料用作球軸承保持器已在航空工業(yè)界引起重眡。 返回 ball retainer