exhaust diffuser

例句：

1. 1. The exhaust diffuser helps to reduce the noise from the engine.
   排气扩散器有助于减少发动机的噪音。
2. 2. The exhaust diffuser is designed to improve airflow and prevent backdrafts.
   排气扩散器设计用来改善空气流动并防止倒流。
3. 3. The exhaust diffuser was installed in the factory to ensure that all emissions were properly filtered out.
   排气扩散器在工厂安装是为了确保所有排放物都被适当过滤掉。