Combo photo shows a vessel passing through a ship lock via a shiplift (L) and Chinese President Xi Jinping viewing the operation of the shiplift during an inspection to the Three Gorges Dam, which lies on the Yangtze River near Yichang City, central China's Hubei Province, April 24, 2018. As the world's largest hydropower project, the Three Gorges project is a multi-functional water control system consisting of a dam stretching 2,309 meters long and 185 meters high, 32 hydropower turbo-generators, a five-tier ship lock and a shiplift. Xi inspected the ship lock, the shiplift and the power plants on the northern bank of the Yangtze River, and listened to reports about work on topics including construction, power generation, navigation and environmental protection. (Xinhua/Pang Xinglei)