正好
added Category:470 製造總論 using HotCat
21:26
+31
创建页面，内容为“File:板翅式换热器1.jpg|缩略图|板翅式换热器[https://tse1-mm.cn.bing.net/th/id/R-C.194a00cb133cbc8740d2ca008c984441?rik=AUvzaszEVG0xbA&riu=http%3a%2f%…”
21:25
+13,949