.Wed Apr 08 2009 23:25:49 GMT+0800
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/06/24 23:46:30
.Wed Apr 08 2009 23:25:49 GMT+0800
P=U^2/R 用中文描述下,郁闷呢
P=U^2/R 用中文描述下,郁闷呢
![.Wed Apr 08 2009 23:25:49 GMT+0800](/uploads/image/z/8844653-29-3.jpg?t=.Wed+Apr+08+2009+23%3A25%3A49+GMT%2B0800)
P等于U的平方除以R
.Wed Apr 08 2009 23:25:49 GMT+0800
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