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China : First cross-sea immersed tube tunnel in north China

    Caihong Wen
    By Caihong Wen Replies (1)

    Subsea immersed tube section of unnel consists of 18 immersed tubes each 180 meters

    http://finance.people.com.cn/BIG5/n1/2022/0929/c1004-32537105.html

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