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?Aerial photo taken on Dec. 16, 2019 shows a railway bridge near the Da Qaidam Station along the Dunhuang-Golmud railway in northwest China's Qinghai Province. A new railway linking Dunhuang city, northwest China's Gansu Province, and Golmud city, northwest China's Qinghai Province, fully opened on Wednesday, according to China Railway. The 671-km route is an important connecting line between the Qinghai-Tibet Railway and the Lanzhou-Xinjiang Railway. It allows trains to run at 120 km per hour, said the company. (Xinhua/Zhang Long)
