正好
added Category:337 電學；電子學 using HotCat
06:10
+37
创建页面，内容为“File:U=1931116070,2111908442&fm=26&gp=0.jpg|缩略图|半导体电中性条件[https://ss0.bdstatic.com/70cFuHSh_Q1YnxGkpoWK1HF6hhy/it/u=1931116070,2111908442&fm=2…”
+11,490