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A bullet train runs on Xi'an-Chengdu Passenger Railway during a test run in Hanzhong, northwest China's Shaanxi, Nov. 30, 2017. The 643-km line is China's first rail route to run through the Qinling Mountains. With a designed speed of 250 km per hour, it will slash the travel time between the two cities from the previous 16 hours. (Xinhua/Li Dehua)
