exhaust gas smoke cleaner

例句：

1. 1.The exhaust gas from the factory is a major source of pollution.
   工厂的废气是主要的污染源。
2. 2.The exhaust gas cleaner helps to reduce emissions and improve air quality.
   废气净化器有助于减少排放并改善空气质量。
3. 3. The exhaust gas cleaner is designed to remove harmful pollutants from the exhaust.
   废气净化器设计用来从废气中去除有害污染物。