tongue and groove滑键: feather key; feather; slidin ...和: mix; blend键槽: keyslot; keyway; key-seating ...键和键槽: keys and keyways splines; keys and keyways, splines键和键槽的剖面尺寸: taper keys-cross section dimensions of keys and keyways下载手机词典可随时随地查词查翻译