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问题的提出: 北京市市政工程负责施工的建国门——大北窑地铁隧道工程,经参加施工的市政三公司、市政四公司职工的努力拼搏,取得了可喜的成绩。“建一永”区间于1994年5月1日在“复一八”线率先完成初期支护贯通,目前已做二次衬砌1100米,可望1996年
The question is raised: The Jianguomen-Dabeiyao Subway Tunnel Project, which is responsible for the construction of the Beijing Municipal Engineering Project, has made gratifying achievements with the hard work of the municipal three companies and the municipal four companies participating in the construction. “Jian Yi Yong” interval on May 1, 1994 in the “one eight” line rate to complete the initial support pierced through, has now done a second lining of 1,100 meters, is expected to 1996