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南盘江地处珠江流域西江水系上游,发源于云南东部沾益县马雄山,跨越滇、黔、桂三省(区)相邻区域,流域内雨量充沛。南盘江流至贵州的双江口与北盘江汇合后称为红水河,从黄泥河口至北盘江口河段长264km,为狭谷地带,滩多水急,河流平均比降为1.61‰,落差达425m,其中天生桥下游的雷公滩落差最集中,是水力资源最丰富的河段。原水电部长沙勘测设计院于1965～1967年曾对天生桥水电站进行了初步设计工作,为本
Nanpanjiang is located in the upper reaches of the Xijiang River in the Pearl River Basin. It originates from Ma Xiong Shan in Zhanyi County, eastern Yunnan Province. It stretches across the adjacent areas of Yunnan, Guizhou and Guangxi (provinces) with abundant rainfall. The area from Shuangjiang River to Guizhou that connects Nanpanjiang River to Guizhou is called Hongshuihe. From Huangni River estuary to Beipanjiangkou River reach is 264km long. It is a valleys with an average of 1.61 ‰, the gap of up to 425m, of which Tianshengqiao Leiguobei fall most concentrated, is the most abundant water resources of the river. The original Hydropower Changsha Survey and Design Institute in 1965 ~ 1967 Tianshengqiao hydropower station had a preliminary design work,