奥加拉拉蓄水层是美国中部平原饮用和灌溉用水的主要来源。
The Ogallala aquifer is a major source of drinking and irrigation water for America's central plains.
该地区是全球最大的连续棉花种植区域在世界，并严重依赖灌溉水取自奥加拉拉蓄水层。
The area is the largest contiguous cotton -growing region in the world and is heavily dependent on irrigation water drawn from the Ogallala Aquifer.
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