A lead-screw is a common driving mechanism in machine tools, and it translates rotational motion to linear motion.Nowadays a ballscrew is usually used instead of a lead-screw.是什么意思_A lead-screw is a common driving mechanism in machine tools, and it translates rotational motion to linear motion.Nowadays a ballscrew is usually used instead of a lead-screw.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句