• Wushaoling railway tunnel is the longest single-track railway tunnel in China and is the key project of Lanxin railway line.

    乌鞘岭隧道兰新线重点控制工程,是国内最长单线铁路隧道。

    youdao

  • Wushaoling railway tunnel is the longest single-track railway tunnel in China and is the key project of Lanxin railway line.

    乌鞘岭隧道兰新线重点控制工程,是国内最长单线铁路隧道。

    youdao

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