片语
external screw thread finish外螺纹瓶口
external superheater thread cutting外螺纹切削
external pipe thread外管螺纹
parallel external pipe thread圆柱外管螺纹
outside thread外螺纹
male thread[机] 外螺纹;阳螺纹
External l thread外螺纹
external tapered thread圆锥外螺纹
external superheater thread外螺纹
external superheater thread grinder外螺纹磨床
external screw thread[机]