open excavation
短语词组
- unprotected open cut excavation 放坡开挖
- open -excavation 明挖
- open channel excavation 明槽开挖
- open pit excavation 露天开采
- constructed by open excavation 明挖法施工
- open excavation construction 明挖施工
- open excavation order method 明挖顺作法
- open tunnel subsurface excavation 明洞暗做
- open excavation and shallow cov -erage 浅埋明挖 返回 open excavation