Aerial photo taken on Aug. 7, 2020 shows the Guide section in the upper stream of the Yellow River in northwest China's Qinghai Province.Photo:Xinhua
Aerial photo taken on Aug. 7, 2020 shows the Guide section in the upper stream of the Yellow River in northwest China's Qinghai Province.Photo:Xinhua
Aerial photo taken on Aug. 7, 2020 shows the Guide section in the upper stream of the Yellow River in northwest China's Qinghai Province.Photo:Xinhua
Aerial photo taken on Aug. 7, 2020 shows the Guide section in the upper stream of the Yellow River in northwest China's Qinghai Province.Photo:Xinhua