backward movement

短语词组

短语

• Prevention backward movement infection 防止逆行感染
• Prohibited backward movement 禁止逆行
• backward movement of poppet 顶杆后坐
• forward and backward movement 正反向运行
• backward and return movement 前后运动
• forward and backward movement knob 载物台前后运动螺旋
• backward movement of the truck 卡车的倒车
返回 backward movement