greased-surface concentrator

例句：

1. 1. The greased-surface concentrator is designed to remove impurities from the oil.
   涂油表面浓缩器旨在从油中去除杂质。
2. 2.The oil-coated surface concentrator was used to purify the water before it was released into the environment.
   油涂层表面浓缩器被用来净化水，然后再排放到环境中。
3. 3. The greased-surface concentrator was found to be more effective than other methods in removing pollutants from the air.
   发现涂油表面浓缩器在从空气中去除污染物方面比其它方法更有效。