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Seller: liu xing, Nanjing, JS, China
paperback. Condition: New. Paperback. Pub Date: 2020-05-01 Pages: 166 Language: Chinese Publisher: Science Press The Law of Overlying Rock Movement and Control of Ground Pressure in a Large Mining Height Stope in Weak Cement Stratum based on a large mining height working face in a weak cement formation in western mining areas The starting point is the law of underground pressure activity. the loose. loose. and weak characteristics of weakly cemented rocks are systematically studied. the overburden structure movement an. Seller Inventory # NS059456
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