短语词组短语key - way 栓道式three key element way 三要素法six key -way broach 六键拉刀modified key -way attachment 栓道附着体Key and key way 栓体栓道eccentric sheave key way 偏心皮带轮键槽key way cutter 开键槽机;翻译;开键槽机英语key way plug gage 键槽塞规 返回 key way