hydrotator classifier

例句：

1. 1. The hydrotator is responsible for powering the city's water supply system.
   水力涡轮机负责为城市的供水系统提供动力。
2. 2. The engineer designed a new hydrotator that can generate more energy.
   工程师设计了一种新型的水力涡轮机，可以产生更多的能量。
3. 3. The hydrotator was installed in the river to improve its flow rate.
   水力涡轮机被安装在河流中，以提高其流速。