backward movement

短語詞組

短語

• Prevention backward movement infection 防止逆行感染
• Prohibited backward movement 禁止逆行
• backward movement of poppet 頂桿后坐
• forward and backward movement 正反向運行
• backward and return movement 前后運動
• forward and backward movement knob 載物臺前后運動螺旋
• backward movement of the truck 卡車的倒車
返回 backward movement