短语词组短語key - way 栓道式three key element way 三要素法six key -way broach 六鍵拉刀modified key -way attachment 栓道附著躰Key and key way 栓躰栓道eccentric sheave key way 偏心皮帶輪鍵槽key way cutter 開鍵槽機;繙譯;開鍵槽機英語key way plug gage 鍵槽塞槼 返回 key way