filter dust collector

例句：

1. 1. The filter dust collector is essential for maintaining clean air in the factory.
   过滤器和除尘器对于工厂保持空气清洁至关重要。
2. 2. The engineer designed a new type of filter dust collector that can effectively remove pollutants from the air.
   工程师设计了一种新型的过滤器和除尘器，可以有效地从空气中去除污染物。
3. 3.The company has invested heavily in research and development to improve the efficiency of its filter dust collectors.
   该公司大量投资于研究和开发，以提高其过滤器和除尘器的效率。