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New Guanjiao Railway Tunnel
释义
New Guanjiao Railway Tunnel
Encyclopedia
工学
〔著名铁路隧道〕
释
New Guanjiao Railway Tunnel
新关角隧道
青藏铁路线上最长的隧道。截至2020年底中国投入运营里程最长的铁路隧道。
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