fix: 111

public/static/js/main_2020_show.js

@@ -249,7 +249,7 @@ var addModelBack = function(model){
     
     //去除一部分面
 
-    
+    transparentModel.children[1].geometry = transparentModel.children[1].geometry.clone()
     let removeIndex = [[1,0,14],[0,1,2],[2,3,0]] 
     let newIndex = []
     let arr = transparentModel.children[1].geometry.index.array