Photo taken on Nov. 19, 2019 shows the Altun Mountains Tunnel on the Golmud-Korla railway line, connecting Golmud in Qinghai Province and Korla in Xinjiang Uygur Autonomous Region, on Nov. 19, 2019. After three and half years of construction work, the Altun Mountains Tunnel was dug through Tuesday. (Xinhua/Song Yanhua)
Altun Mountains Tunnel on Golmud-Korla railway line dug through
Source: Xinhua| 2019-11-19 21:39:20|Editor: ZX
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