exhaust header

例句：

1. 1. The exhaust header is responsible for directing the exhaust gases from theengine into the exhaust system.
   排气管头部负责将发动机的废气直接导向排气系统。
2. 2. The exhaust header is designed to minimize the amount of heat and pollutants released into the atmosphere.
   排气管头部的设计旨在将排放到大气中的热量和污染物降至最低。
3. 3. The exhaust header is an important component in the exhaust system, which helps to control the flow of exhaust gases.
   排气管头部是排气系统中的一个重要组件，有助于控制废气的流动。