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Study on working face length and east end-wall push-back internal dumping method in the first mining area of Hongshaquan Open-pit Coal Mine #br#

冯勇强, 胡德昊, 洪常鑫, 马 力, 刘冰烊, 杨 杰
Coal Engineering . 2026, (6): 21 -28 .  DOI: 10.11799/ce202606004