karst river detail 喀斯特暗河
karst river watershed 喀斯特流域
karst and underground river 溶洞
karst underground river 岩溶地下河
karst t river 岩溶暗河
karst ground river 岩溶地下河
Block of Karst Blind River 喀斯特暗河堵头
Vang Vieng's natural beauty is breathtaking: It sits on the Nam Song River amid jagged karst mountains.
万荣的自然风光以险峻著称：它就坐落在南淞喀斯特山区。
Because human activities and hydroenergy development along the Hongshui River, the karst immersion waterlogging hazards have become increasingly critical, which we should pay serious attention to.
红水河流域由于多年人类活动和水能资源开发所产生的岩溶浸没—内涝灾害，在局部范围内比较严重，必须引起高度重视！
Liulin spring, one of the largest karst springs in North China, is located in Dongsanchuan River Valley of Liulin County, Shanxi Province.
柳林泉位于山西省柳林县东川河河谷，是中国北方最大的岩溶泉之一。
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