tunnel excavation
短语词组
- tunnel after excavation 隧道开挖后
- open tunnel subsurface excavation 明洞暗做
- Shallow tunnel by excavation 浅埋暗挖
- tunnel portal excavation 隧道洞门开挖
- shallow tunnel excavation 浅埋隧道开挖
- tunnel excavation and dewatering 隧道开挖及疏水
- Tunnel excavation method 隧洞开挖方法
- Tunnel excavation blasting 隧道开挖爆破
- pilot tunnel excavation 导硐掘进 返回 tunnel excavation