To obtain the phase of line is important in the design of power electronic equipments.

准确获得电网电压的相位角，在电力电子装置设计中有重要的意义。

youdao

To obtain the phase of line is important in the design of power electronic equipments.

准确获得电网电压的相位角，在电力电子装置设计中有重要的意义。

youdao