backing-off cone clutch

例句：

1. 1.The engineers designed a backing-off cone clutch to improve the vehicle's efficiency.
   工程师们设计了一个后退离合器来提高车辆的效率。
2. 2. During the race, the driver used the backing-off cone clutch to control the speed.
   比赛中，驾驶员使用后退离合器来控制速度。
3. 3. The backing-off cone clutch is an essential component of the transmission system.
   后退离合器是传动系统的一个关键部件。