Changling-Yongqing section of China-Russia east-route natural gas pipeline under construction
Aerial photo taken on June 4, 2020 shows the construction site of the Changling-Yongqing section of the China-Russia east-route natural gas pipeline in Youzha Township of Luanzhou City, north China's Hebei Province. (Xinhua/Yang Shiyao)
(Editor:Fu Bo)