ZHENGZHOU, July 15, 2016 -- Chinese bullet trains "Golden Phoenix" and "Dolphin Blue" pass each other on the high-speed rail line between Zhengzhou in central China's Henan Province and Xuzhou in east China's Jiangsu Province, July 15, 2016. Two Chinese trains "Golden Phoenix" and "Dolphin Blue" dashing at world-record 420 km per hour in opposite directions passed each other on parallel tracks on Friday, in the latest feat achieved by China in high-speed rail. (Xinhua/Zhu Xiang)
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