1) large diameter water supplying pipes
大口径给水管
1.
It is proved to be able to cut down investment,save time and make less environmental impact by applying this technology on large diameter water supplying pipes and is worth for promotion.
结果证明,利用该技术修复大口径给水管可减少投资、节省工时、对环境破坏少,宜于推广。
5) large diameter pipe-line of water supply
大口径供水管道
1.
Supporting construction of large diameter pipe-line of water supply
大口径供水管道支护施工
补充资料：次大口径成品油管道(见大口径原油管道)
次大口径成品油管道(见大口径原油管道)
small big inch products pipeline
次大口径成品油管道比m“，。彬duet、pipeline)见大。径原油管道。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条