A test train runs on Zhengzhou-Xuzhou high-speed railway, Sept 6, 2016. China's high-speed railways now exceed 20,000 km in length with the opening of a line linking Zhengzhou in Central China's Henan province with Xuzhou in eastern Jiangsu province on Sept 10, 2016. The line connects the west with two major north-south lines, helping cut travel time between west and east in the country. [Photo/Xinhua] |