tunnel excavation
短语词组
- tunnel after excavation 隧道開挖後
- open tunnel subsurface excavation 明洞暗做
- Shallow tunnel by excavation 淺埋暗挖
- tunnel portal excavation 隧道洞門開挖
- shallow tunnel excavation 淺埋隧道開挖
- tunnel excavation and dewatering 隧道開挖及疏水
- Tunnel excavation method 隧洞開挖方法
- Tunnel excavation blasting 隧道開挖爆破
- pilot tunnel excavation 導硐掘進 返回 tunnel excavation