Узбекча секис галереи / 视

视在功率的单位是VA 有功功率的单位是W 无功功率的单位是var 请问他们的意义和区别谢谢百度知道

Erotik 视在功率的单位是VA 有功功率的单位是W 无功功率的单位是var 请问他们的意义和区别谢谢百度知道.

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