emergency brake gear

例句：

1. 1. The emergency brake was activated by thesudden stop of the car.
   汽车突然停止，紧急刹车被激活了。
2. 2. The engineersinstalled new emergency brake gear to ensure smoothoperation during emergencies.
   工程师安装了新的紧急刹车设备，以确保在紧急情况下能够顺畅运行。
3. 3. The vehicle's emergency brakegear is designed to prevent accidents in caseof a collision.
   车辆的紧急刹车设备设计用来防止碰撞事故。