metal recovery unit

例句：

1. 1. The metal recovery unit is responsible for recycling scrap metals.
   金属回收单位负责回收废金属。
2. 2. The city has established a metal recovery unit to reduce waste and protect the environment.
   该市已设立一个金属回收单位，以减少废物并保护环境。
3. 3. The metal recovery unit is a crucial part of our recycling program.
   金属回收单位是我们回收计划中至关重要的一部分。