Concrete liner

• 混凝土衬砌

Concrete liner的用法和样例：

例句

1. We have used needle beam telescoping steel form in the Mao-Gong reservoir sediment tunnel in the concrete lining.
   在庙宫水库排沙洞的衬砌施工中使用了针梁式混凝土衬砌钢模台车。