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知道功率和电压求电流
作者:
admin
时间:
2018-06-01
分类:
其他
设功率为P,电压为U,电流为I:
I=P/U
标签: none
仅有一条评论
青山
June 15th, 2018 at 07:22 pm
哈哈初中学过
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