怪物猎人x溪流黄金鱼:come in 帮帮我

来源：百度文库 编辑：高校问答 时间：2024/05/12 20:07:00
电功率的计算 有什么简单的方法求比值啊？

P=UI
P=I^2R
P=U^2/R
P=W/t

P=UI
P=I^2R
P=U^2/R
P=W/t

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