正好
added Category:470 製造總論 using HotCat
20:13
+31
创建页面，内容为“File:热平衡1.jpg|缩略图|热平衡[https://tse1-mm.cn.bing.net/th/id/R-C.311bb677aba463b1c1a9ec8d9929f330?rik=uPRqV0liNoEPqA&riu=http%3a%2f%2fimg.bj.wezhan.cn…”
20:12
+5,459