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由中国水力发电工程学会施工机械化及施工管理专业委员会、中国挖掘机械研究会多年挖掘机与掘进机学组和甘肃省引大入秦工程指挥部联合召开的“隧洞快速施工及全断面掘进机现场研讨会”于1991年8月22日至27日在甘肃省兰州市举行。来自水电、煤炭、铁路等系统的设计院、工程局、研究所、制造厂、高等院校及其它有关部门的70余名代表参加了这
By the China Hydropower Engineering Society of Construction Mechanization and Construction Management Committee, China Mining Machinery Research Association for many years excavators and boring machine group and Gansu Province cited Qin Qin engineering headquarters jointly held a “tunnel construction and full-face tunneling machine site Seminar ”was held in Lanzhou, Gansu Province from August 22 to August 27, 1991. More than 70 representatives from design institutes, engineering offices, research institutes, manufacturing plants, universities and other relevant departments from hydropower, coal, railways and other systems participated in this