reflow unit

例句：

1. 1. The reflow unit is responsible for the process of reheating and recirculating the fluids.
   回流单元负责重新加热和循环流体的过程。
2. 2.In the chemical industry, the reflow unit is used to recycle waste chemicals.
   在化工行业中，回流单元用于回收废物化学品。
3. 3. The reflow unit was designed to improve the efficiency of the manufacturing process.
   回流单元的设计旨在提高制造过程的效率。