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由中国煤炭学会开采专业委员会、山东煤炭学会、龙口矿务局联合主办的全国矿井开拓巷道布置改革研讨会,在统配煤矿总公司生产局、中国煤炭学会、山东煤管局、山东煤炭学会、龙口矿务局的大力支持下,于1991年9月在龙口局召开.出席会议的代表132名.收到局矿、设计科研院(所)等高院校学术论文61篇.
By the China Coal Mining Association Professional Committee, Shandong Coal Institute, Longkou Mining Bureau co-sponsored the national mine to open up the roadway layout reform seminar in the unified coal production Bureau Corporation, China Coal Society, Shandong Coal Administration, Shandong Coal Institute, With the strong support from Longkou Mining Bureau, it was held in Longkou Bureau in September 1991. There were 132 delegates attending the meeting, and received 61 articles from institutions such as Bureau of Mining and Designing Scientific Research Institutes (institutes).