Har Nuur, like other lakes in the region, is a closed-basin lake fed by precipitation.

哈尔湖与本地区的其它湖泊一样，是封闭的一个靠降水给养的盆地湖泊。

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The outline of geotectonic and geomorphology of the Central Asia is characterized by range and basin complex. All the closed basins develop tail-end-lake (or lakes).

亚洲中部大地构造格局及地貌轮廓均以山盆体系为特征，所有封闭性盆地中都发育有尾闾湖。

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According to Ben Urbonas, president of the Urban Watersheds Research Institute, these nutrient contaminants tend to be more of a problem in closed water systems,like lakes, where concentrations can build up.

VOA: standard.2010.08.04