正好
added Category:330 物理學總論 using HotCat
22:21
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创建页面，内容为“File:U=399947102,1148821019&fm=26&gp=0.jpg|缩略图|可变电容器[https://gimg2.baidu.com/image_search/src=http%3A%2F%2Fgss0.baidu.com%2F94o3dSag_xI4khGko9WTAnF…”
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