servicing machine

例句：

1. 1. The servicemachine is used to maintain the equipment.
   服务机用于维护设备。
2. 2. The maintenance machine wasused to fix the broken parts of themachine.
   维修机被用来修理机器的损坏部分。
3. 3. The service machine is essential formaintaining the smooth operation of the factory.
   服务机对于保持工厂的顺畅运作至关重要。