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This diagram illustrates where in China the Three Gorges Project [left red bar at the center of the concentric circles], and the Gezhouba Project, [right red bar] are situated. The inner circle represents the power-distribution scale of the Gezhouba Project, while the outer one represents the Three Gorges Project. Built across the turbulent Yangtze River, both projects are able to control water flowing downwards from the shaded area as shown.
 
 
 

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