discharge filter

例句：

1. 1. The engineer needs to install a new discharge filter in the engine.
   工程师需要给发动机安装一个新的排放过滤器。
2. 2.The company uses high-efficiency discharge filters to reduce emissions.
   该公司使用高效的排放过滤器来减少排放。
3. 3. The filter is designed to remove pollutants from the exhaust gases before they are discharged into the atmosphere.
   该过滤器设计用来在排放到大气之前从废气中去除污染物。