1)screwing machine,制螺纹机2)machined thread,机制螺纹3)screw-machine inserts,机制螺纹嵌件4)screw chasing machine,螺纹切削机;螺丝车床;制螺钉机5)Whitworth thread,吋制螺纹6)The metric system screw,公制螺纹
用法例句
It is used to cut some type screws, such as the metric system screw, the modular system screw, and so on, when their transfer ratio of multiple structure equals one.