practical training for pipe worker

• 管工实训

practical training for pipe worker的用法和样例：

例句

1. There's an opening for a plumber.
   有一个铅管工的空缺。
2. The plumber finds no pipe leaks and suspects a mains leak.
   水管工没有发现漏水的水管，怀疑是主管道漏水。