expansion lining

• 扩张衬砌

expansion lining的用法和样例：

例句

1. Present Conditions and Thinking of Canal Lining in Luohuiqu Irrigation Area.
   洛惠渠灌区渠道衬砌现状与思考。
2. Lining cracks will affect the bearing capacity and the safety of tunnels.
   隧道衬砌开裂将影响隧道的承载能力和使用安全。