machine for cleaning drain pipe

例句：

1. 1. The machine is designed to clean the drain pipe.
   这台机器被设计来清洁排水管。
2. 2. The engineer used a machine to repair the broken pipe.
   工程师使用一台机器来修理破裂的管道。
3. 3. The machine was essential for cleaning the dirty water pipes.
   这台机器对于清理脏水管道至关重要。