A drill is held to practice ice-clearing methods to be used both in the Yellow River and on ground in Baotou City, North China's Inner Mongolia Autonomous Region, March 13, 2019. The region's Flood Control and Drought Relief Office deployed bomber, hovercraft and drone in the drill. (Photo: China News Service/Zhang Linhu)
A drill is held to practice ice-clearing methods to be used both in the Yellow River and on ground in Baotou City, North China's Inner Mongolia Autonomous Region, March 13, 2019. The region's Flood Control and Drought Relief Office deployed bomber, hovercraft and drone in the drill. (Photo: China News Service/Zhang Linhu)
A drill is held to practice ice-clearing methods to be used both in the Yellow River and on ground in Baotou City, North China's Inner Mongolia Autonomous Region, March 13, 2019. The region's Flood Control and Drought Relief Office deployed bomber, hovercraft and drone in the drill. (Photo: China News Service/Zhang Linhu)
A drill is held to practice ice-clearing methods to be used both in the Yellow River and on ground in Baotou City, North China's Inner Mongolia Autonomous Region, March 13, 2019. The region's Flood Control and Drought Relief Office deployed bomber, hovercraft and drone in the drill. (Photo: China News Service/Zhang Linhu)