相应的高水头大直径水工压力隧洞的建设也逐渐增多。并且越来越多的工程采用地下钢筋混凝土岔管。

Building of hydraulic tunnels with high head and large diameter increase gradually, and the underground reinforced concrete branch pipe is adopted in more and more projects.

youdao

相应的高水头大直径水工压力隧洞的建设也逐渐增多。并且越来越多的工程采用地下钢筋混凝土岔管。

Building of hydraulic tunnels with high head and large diameter increase gradually, and the underground reinforced concrete branch pipe is adopted in more and more projects.

youdao