underground excavation
短语词组
- underground work excavation 地下开挖工程
- underground powerhouse excavation 地下厂房开挖
- underground engineering excavation 地下工程开挖
- underground excavation engineering 井巷工程
- underground excavation engineering project 地下洞室工程
- shallow underground excavation method 浅埋暗挖法
- underground excavation cluster 地下洞室群
- shallow underground excavation 浅埋洞室;浅埋暗挖
- shallow cover underground excavation 浅埋暗挖法 返回 underground excavation