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right tube 6,785 m left tube 6,752 m,
right tube 6,776 m
previous name is
Xizhouling Tunnel left tube 6,750 m,
right tube 6,765 m 6.708 km + 6.693 km left...
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Tunnel (麻崖子隧道)
previous name is
Mixiliang Tunnel (米溪梁隧道 )
previous name is
Xizhouling Tunnel (西周岭隧道) left tube: 6,284m,
right tube: 6,328m 6.308 km + 6.280 km...