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由中国工程院土木、水利与建筑工程学部、北方交通大学、北京城建设计研究总院共同主办,由中国交通运输协会轨道交通专业委员会中国地铁工程咨询公司、北京城市交通发展研究中心、北京地铁运营公司、上海地铁建设总公司、上海隧道及城市轨道交通设计研究院、广州地铁总公司、南京地铁总公司、青岛地铁总公司、成都地铁建设领导小组办公室、重庆市轨道交通总公司协办的“降低地
By the Chinese Academy of engineering, civil engineering, water conservancy and construction engineering, North Jiaotong University, Beijing Urban Construction Design and Research Institute co-sponsored by the China Railway Transport Association Professional Committee of Rail Transit China Railway Engineering Consulting Company, Beijing Urban Transport Development Research Center, Beijing Metro operating company , Shanghai Metro Construction Corporation, Shanghai Tunnel and Urban Rail Transit Design and Research Institute, Guangzhou Metro Corporation, Nanjing Metro Corporation, Qingdao Metro Corporation, Chengdu Metro Construction Leading Group Office, Chongqing Municipal Rail Transit Corporation,