フランシス水車
Today, the Francis turbine is the most widely used water turbine in the world, including China's new Three Gorges Dam as the world's 2nd largest hydroelectric power station in the world, with a future installed capacity of 22,500 MW. With the incorporation of the Francis turbine into almost every hydroelectric dam built since 1900, it is responsible for generating almost 1/5 of all the world's electricity: