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在国内外一派大好形势下,在学习无产阶级专政理论的热潮中,铁路隧道衬砌专业会议于1975年4月15日至25日在兰州召开。会议由铁道部委托第一、三设计院共同主持,参加会议的有路内外有关隧道设计、施工、运营、科研、教学等27个单位共85名代表。铁道部基建局派员到会指导。会议期间,学习了毛主席关于理论问题的重要指示,中央有关文件和国务院领导同志的讲话。代表们回顾了1961年全路隧道衬砌专业
At a time of fantastic situations both at home and abroad and under the craze of learning the theory of proletarian dictatorship, the railway tunnel lining professional conference was held in Lanzhou from April 15 to April 25, 1975. The meeting was commissioned by the Ministry of Railways, the first and third Design Institute co-chaired the meeting attended the meeting on the inside and outside the tunnel design, construction, operation, research, teaching, a total of 85 representatives of 27 units. Infrastructure Bureau of the Ministry of Railways sent members to the guidance. During the meeting, Chairman Mao studied important instructions on theoretical issues, the relevant documents from the Central Government and the speeches made by the leading comrades of the State Council. Delegates reviewed the 1961 tunnel lining professional