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据南水北调中线建管局消息,南水北调北京段西四环暗涵下穿五棵松地铁车站工程贯通。这次成功的穿越标志着南水北调北京段地下工程中安全要求最高、施工
According to the South-to-North Water Diversion Central Building Authority news, Nanshui North Beijing section of the West Fourth Ring culvert under Wukesong metro station project through. The successful crossing marks the highest safety requirements in the underground section of the South-to-North Water Diversion Project in Beijing. Construction