back and forth movement meaning in English
往返运动
往复运动
Examples
- This machine is newly researched and designed by our factory based on the model of combined cam , it winds up the plastic tape by the back and forth movement of the swinging stem driven by the cam
采用心型凸轮的旋转来带动摆杆作来回移动而卷绕成形。比原往复丝杆的结构运转更加轻松