exhaust beater

例句：

1. 1.The exhaust system in the car is essentialfor maintaining a comfortable driving experience.
   汽车的排气系统对于保持舒适的驾驶体验至关重要。
2. 2.The exhaust pipe was damaged during the accidentand needed to be replaced.
   事故中损坏了排气管，需要更换。
3. 3. The exhaustgases from the engine are cleaned upbefore they are released into the atmosphere.
   发动机排放的废气在排放到大气之前会被清理干净。