从物理和数学的角度，对单相电路、三相电路瞬时有功功率和瞬时无功功率的概念进行了剖析。

From physical and mathematical points of view, this paper analyses the nature of instantaneous active and reactive power.

youdao

从物理和数学的角度，对单相电路、三相电路瞬时有功功率和瞬时无功功率的概念进行了剖析。

From physical and mathematical points of view, this paper analyses the nature of instantaneous active and reactive power.

youdao