File photo taken on Jan. 3, 2015 show a high-speed train running through the Hexi Corridor in Zhangye City, northwest China's Gansu Province. By 2014, six years after the launch of China's first highspeed railways (HSR) passenger service, China boasts 16,000 km of highspeed railways among 112,000 km of railways, the world's largest HSR network, China Railway Corporation(CRC) data showed. (Xinhua/Chen li)
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