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中交建公司在建项目最长的双线铁路隧道——国家重点建设工程太中银铁路柳林隧道,经过施工人员连续两年的不断掘进,于1月17日贯通,在太
CCCC built the longest two-lane railway project - the national key construction project too Lin silver tunnel Liulin tunnel, after continuous construction of two consecutive years of tunneling workers, on January 17 through, too