A flat, arid valley surrounded by mountains and draining into a shallow central lake.

沙漠盆地，封闭盆地：被山脉包围的平坦干旱的山谷，干涸为一个浅的中央湖。

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The middle reaches of Heihe river is the second largest inland valley in the arid region of northwestern China.

黑河中游是我国西北干旱区开发历史较早，绿洲化程度较高的第二大内陆河流域。

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The arthropod community of Leucaena leucocephala plantation in Yuanmou Arid-hot Valley was investigated in 2005.

于2005年对云南元谋干热河谷新银合欢林昆虫群落进行了调查。

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"This is a crucial piece of information about an area that is now hyper arid but in the past must have been a lush river valley, " he explains.

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She oversees a critical juncture in the Colorado River Valley, stewarding the very essence of what makes life possible in the arid American Southwest.

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Obama is about to walk through "the valley of death, " where candidates lose their way and are tested on an arid march.

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