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由成都铁路局、西南交通大学并邀请西南科学研究所主持的铁路局工程情报网中南、西南分网无缝线路专题交流会,于1979年11月12日至17日在成昆线夹江召开。参加交流会的有广州、郑州、武汉、柳州、昆明、成都铁路局所属科研所及工务处,长沙铁道学院,铁道部科学研究院等单位的代表共计50余人。会上宣读了“桥上长钢轨模型试验报告”、“成昆线清
From Chengdu Railway Bureau, Southwest Jiaotong University and Southwest Institute of Science and invited the South China Railway Engineering Information Network South-South, South-South Branch seamless line seminar on November 12, 1979 to 17 in the Kunming Line Jiajiang Held. More than 50 representatives from Guangzhou, Zhengzhou, Wuhan, Liuzhou, Kunming and Chengdu Railway Bureau affiliated scientific research institutes and public works offices, Changsha Railway Institute and the Scientific Research Institute of the Ministry of Railways participated in the exchange. At the meeting read the “bridge long rail model test report”, "Cheng Kun line clear