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航拍世界第一大水电工程——三峡大坝(组图)

2017-09-21 10:57:20   国际在线

图为航拍世界第一大水电工程——三峡大坝 新华网 欧阳小洁 摄

中国三峡工程是迄今世界上最大的水电工程,位于西陵峡中段的湖北省宜昌市境内的三斗坪。

1994年12月,三峡工程正式开工。其1820万千瓦的装机容量和847亿千瓦时的年发电量均居世界第一。主体工程三峡大坝全长2309米,是世界上规模最大的混凝土重力坝。1997年11月,三峡工程顺利实现大江截流。2003年6月,三峡工程下闸蓄水,首批机组开始发电。2006年5月20日,三峡大坝全线达到海拔185米设计高程,比原计划提前近10个月,标志着三峡大坝建成。三峡工程对防洪、发电和促进航运事业发展具有重要作用。

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