在交流提升机的自动控制中，低频电源的设计是低频拖动控制的关键。

The design of the low-frequency power is the key factor to the control process of the mine lift.

youdao

在交流提升机的自动控制中，低频电源的设计是低频拖动控制的关键。

The design of the low-frequency power is the key factor to the control process of the mine lift.

youdao