Substitution position of methylene group

• 热处理

Substitution position of methylene group的用法和样例：

例句

1. He was assigned to the heat-treatment shop of the mill.
   他被分配到厂里的热处理车间工作。
2. The heat treater has no documented evidence of quality planning.
   热处理方没有质量控制计划的证据。