overburden strata
短语词组
- overburden separated strata 覆岩离层
- mining overburden separated strata 采动覆岩离层
- overburden strata structure 覆岩体结构
- overburden strata movement 覆岩运动
- overburden strata grouting 覆岩注浆
- overburden strata activity law 覆岩运动规律
- thickness of overburden strata 覆岩岩柱厚度
- overburden strata ore -drawing 覆岩下放矿
- structure zoning of overburden strata 覆岩结构分带 返回 overburden strata