brake slack adjuster

例句：

1. 1. The brake slack adjuster on my car is worn out, and I need to replace it.
   我的车的制动松紧调节器磨损了，我需要更换它。
2. 2. The engineer adjusted the brake slack adjuster to improve the braking performance.
   工程师调整了制动松紧调节器，以提高制动性能。
3. 3. The brake slack adjuster was responsible for controlling the vehicle's speed during the emergencystop.
   制动松紧调节器负责在紧急刹车时控制车辆的速度。