05电能和电功率,电功率与电能区别,电功率a href=/s?wd=%E7%94%B5%E5%8A%9F%E7%94%B5%E5%8A%9F%E7%8E%87%E8%A7%86%E9%A2%91%E8%AE%B2%E8%A7%A3&rsf=1&rsp=2&f=1&oq=%E7%94%B5%E8%83%BD%E5%92%8C%E7%94%B5%E5%8A%9F%E7%8E%87&ie=utf-8&usm=1&rsv_pq=cdbcd95f00016b3a&rsv_t=347fs4fRg8eiO8af
