screw-on surface螺紋: screw thread; flight; helica ...定位面: locating surface條紋定位: fring location; fringe location定位面: locating surface◇定位面公差 registering surface tolerance側(cè)定位面: side locating face下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯