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Tunnel under construction on Guiyang-Nanning high-speed railway in Guangxi
Phootgraphs tunnel under construction on Guiyang-Nanning high-speed railway in Guangxi
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cover tunnel photo by: Matt Brown from London, England / CC BY
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Tunnel under construction on Guiyang-Nanning high-speed railway in Guangxi
www.xinhuanet.comTunnel under construction on Guiyang-Nanning high-speed railway in Guangxi-