Aerial photo taken on July 18, 2022 shows the construction site of Zishui super major bridge along Changde-Yiyang-Changsha railway, in central China's Hunan Province. The 157-kilometer high-speed railway line, connecting the cities of Changde, Yiyang and Changsha in Hunan Province with a designed speed of 350 kilometers per hour, is an important part in China's high-speed railway network. [Photo by Chen Sihan/Xinhua]
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