pole change motor

例句：

1. 1. The new pole change motor has significantly improved the efficiency of our factory's production line.
   新极变电机大大提高了我们工厂生产线的效率。
2. 2.In order to reduce energy consumption, the company has adopted a pole change motor in its new office building.
   为了减少能源消耗，公司在其新办公楼采用了极变电机。
3. 3. The pole change motor is designed to quickly switch between two different voltage levels, allowing for efficient powerdistribution.
   极变电机设计用于快速切换两种不同的电压水平，从而实现高效的电力分配。