基于空隙量守恒的覆岩裂隙带发育高度模型
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Model of the Height of Overburden Fracture Zone Based on Void Conservation
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图8. 煤下铝土矿开采裂隙带高度、采高及放顶高度的关系图 |
Fig.8. Relationship diagram of fracture zone height,mining height and roof caving height of under-coal bauxite mining |
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