Aerial photo taken on April 17, 2017 shows the construction site of Guanting Reservoir Bridge of Beijing-Zhangjiakou high-speed railway in north China. (Xinhua/Xing Guangli)
Guanting Reservoir Bridge of Beijing-Zhangjiakou railway under construction
Source: Xinhua| 2017-04-17 16:32:39|Editor: Lu Hui
KEY WORDS: Railway
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