rotary annular extractor

例句：

1. 1.The rotary extractor is used to remove impurities from the oil.
   旋转式提取器用于从油中去除杂质。
2. 2.The rotary valve is crucial for maintaining the proper flow of gases in the pipeline.
   旋转式阀门对于保持管道内气体的适当流动至关重要。
3. 3. The rotary pump is commonly used in industrial processes to transfer liquids and solids.
   旋转式泵常用于工业过程中输送液体和固体。