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reservoir
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reservoir Hume Reservoir Mount Cenis São Paulo, Braz.
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reservoir
reservoir Former drinking-water reservoir at Sywell County Park, Northamptonshire, England.

reservoir

water storage
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reservoir, an open-air storage area (usually formed by masonry or earthwork) where water is collected and kept in quantity so that it may be drawn off for use. Reservoirs are an important feature of many water supply systems around the world. Changes in weather cause the natural flow of streams and rivers to vary greatly with time. Periods of excess flows and valley flooding may alternate with low flows or droughts. The role of water-storage reservoirs, therefore, is to impound water during periods of higher flows, thus preventing flood disasters, and then permit gradual release of water during periods of ...(100 of 765 words)

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