大地彩票官网

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                穿黄隧道鉴定

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                点击次数:571 更新时间:2022年10月21日10:16:14 打印此页 关闭

                     本集团经大桥局委托,对服役银川穿黄隧道接收井进行性能鉴定,隧道采用盾构法下穿黄河,隧道穿越长度约1838m。












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