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千岛湖位于浙江省西部山区淳安县境内，它发源于安徽省黄山山脉，是钱塘江水系的正源，１９５９年新安江水电站大坝截流后，形成了一个蓄水面积５７５平方公里、库容量１７８亿米３的特大型水库——新安江水库。水库平均水深３０．４３米，最深处达１００米以上，年水位落差较
Qiandao Lake is located in Chun’an County in the western mountainous area of Zhejiang Province. It originates from the Huangshan Range in Anhui Province and is the source of the Qiantang River. After the closure of the dam of Xin’anjiang Hydropower Station in 1959, a water storage area of 575 square kilometers has been formed and the reservoir capacity 1780000000 m 3 large reservoir - Xin’anjiang reservoir. The average depth of the reservoir 30.43 meters, the deepest 100 meters above the water level gap