莲升
创建页面，内容为“File:线膨胀系数.jpg|缩略图|[https://image.baidu.com/search/index?tn=baiduimage&ps=1&ct=201326592&lm=-1&cl=2&nc=1&ie=utf-8&word=%E7%BA%BF%E8%86%A8%E8%83%80%…”
12:09
+6,898