混凝土衬砌高压水道
concrete-lining high pressure hydropower tunnel
清水混凝土砌块
Fair-faced Concrete Block
隧洞预应力混凝土衬砌
prestressed concrete tunnel liner
衬砌混凝土
lining concrete
reinforced concrete lining
liner concrete
linging concrete structure
concrete for lining
concrete lining
衬砌混凝土施工技术
Construction technology of lining concrete
二次衬砌混凝土
secondary lining concrete
钢板衬砌混凝土管
steel-lined concrete pipe
钢衬、回填混凝土衬砌
steel lining and concrete lining
钢筋混凝土衬砌
reinforced concrete lining
混凝土衬砌结构
concrete lining structure
机械化混凝土衬砌
mechanized concrete lining
斜井混凝土衬砌
concrete lining of inclined shaft
长距离无压引水隧洞
long-distance non-pressure water diversion tunnel
long tunnel
长距离引水隧洞
long-distance diversion tunnel