overburden
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- overburden blasting.
揭顶大爆破
- hard coal lignite , overburden , limestone , ash slag
烟煤褐煤剥离物石灰石灰渣矿渣
- Microbial oxidation of ores, tailings, and overburden contribute s to ARD.
微生物氧化的矿石，料和覆盖岩层会产生酸性岩排水。
- One of the key findings is the role of overburden in bitumen mobilization.
一个关键发现就是上覆岩层在沥青运动作用中的作用。
- Analysis of dynamic characteristics for the asphalt concrete core dam by deep overburden
深覆盖层沥青混凝土心墙坝动力特性分析
- Analyzing falling crack failure of overburden strata of shallow coal seam and its control method
浅埋煤层覆岩切落裂缝破坏及控制方法分析
- The United States says it will not participate because an additional test would overburden schools.
美国称其不会参与，因为一门额外的考试将使学校负担过重。
- Numerical simulation of overburden three zones for mining operation with thick overburden and less depth.
厚土层浅埋深煤层开采覆岩三带的数值模拟
- Construction technology for outer wall of freezing section in special thick overburden of Longgu auxiliary mine shaft
龙固矿副井特厚表土层冻结段外壁施工技术
- Actual Measuring Method of Failure Height of Overburden Stratum in a Fully Mechanized Caving Stope and Its Application
综放采场覆岩破坏高度的实测方法及应用
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