safety clutch

例句：

1. 1. The safety clutch is designed to prevent the car from moving forward in an emergency.
   安全离合器设计用来在紧急情况下防止汽车前进。
2. 2. The engineer replaced the safety clutch with a new one after the accident.
   事故发生后，工程师用一个新的安全离合器替换了原来的。
3. 3. The safety clutch is essential for maintaining the smooth operation of the vehicle.
   安全离合器对于保持车辆平稳运行至关重要。