A groundwater reservoir from which water can be extracted is called an aquifer.
可以从中抽取水的地下蓄水层被称为含水层。
Extraction of water depends on two properties of the aquifer: porosity and permeability.
水的开采取决于含水层的两个性质：孔隙度和渗透性。
Water does not remain immobile in an aquifer but can seep out at springs or leak into other aquifers.
水在含水层中并不是静止不动的，而是会从泉水中渗出，或渗入其他含水层。
This aquifer was named the Ogallala aquifer after the Ogallala Sioux Indians, who once inhabited the region.
这个含水层被命名为奥加拉拉含水层，以曾经居住在这个地区的奥加拉拉-苏族印第安人的名字命名。
The situation is most critical in Texas, where the climate is driest, the greatest amount of water is being pumped, and the aquifer contains the least water.
这种情况在德州最为严重，那里气候最干燥，抽水量最大，含水层含水最少。
The Ogallala aquifer is a sandstone formation that underlies some 583,000 square kilometers of land extending from northwestern Texas to southern South Dakota.
奥加拉拉含水层是一个砂岩地层，位于从德克萨斯州西北部延伸到南达科他州南部，约583000平方公里土地的地下。
The aquifer which had once fed the wells was pronounced dry.
曾经给这些井提供水源的蓄水层已被宣告枯竭。
The wine region’s first water came from an ancient aquifer.
用来灌溉这个地区葡萄园的第一批水来自古老的地下蓄水层。
The machine that promises to break bedrock into the aquifer seemingly can't.
钻进机据说能钻破岩层进入含水层，但看起来不行。
Fryeburg, in south-west Maine near the New Hampshire border, sits on an enormous aquifer.
福莱伯位于缅因州的西南地区，靠近新罕布什尔的边界，拥有巨大的地下蓄水层。
Estimates for the life of the Nubian sandstone aquifer range from a century to a millennium.
学者们对努比亚砂岩含水层寿命的估计相差悬疏，从一百年到一千年不等。
Afew hundred million gallons of water will also be pumped out of the local aquifer each year.
每年将有几个亿加仑的水从当地的地下蓄水层抽取上来。
Know the source of your drinking water-the river, lake, or aquifer that supplies your home.
知道你的饮用水的来源——河流，湖泊或是你家的含水土层。
The Ogallala aquifer is a major source of drinking and irrigation water for America's central plains.
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。
What is more, the hydrology of the aquifer, it argues, would slow the spread of any leak to a snail's pace.
另外，它认为，含水层的水文条件会使任何泄漏的蔓延速度变得十分缓慢。
But it is running out of water, with farmers driving Wells deeper and deeper into the underlying aquifer.
但是那里水资源正日趋枯竭，农民的井越挖越深，已经到了地下蓄水层。
In a US-backed project, it will store 100, 000 tonnes of carbon dioxide annually in a nearby saline aquifer.
这项由美国支持的工程每年将把十万吨二氧化碳存储在就近的咸水含水层里。
The aquifer rises especially close to the surface in the Sand Hills region in the north of the state, near Mrs Luebbe's ranch.
在该州北部的沙岗地区、吕伯的牧场附近，含水层尤其接近地表。
Two million years ago, a cave-studded aquifer lay beneath an undulating plain of shallow, wooded valleys and rolling hills.
200万年前，在树木丛生的谷地和波状丘陵地带的起伏平原之下，是洞穴密布的地下蓄水层。
Because only about 2% of Libya's land receives enough rainfall to be cultivated, this project uses fossil water from a large underground aquifer.
由于降水稀少，导致利比亚只有2%的国土适宜作物种植。
"We take only what the aquifer can afford," according to Tom Brennan of Poland spring-which says it accounts for just 0.2% of Maine's groundwater use.
根据Poland Spring的汤姆·布伦南的说法，“我们只是利用了地下蓄水层所能提供的，”也就是说只占用了缅因州地下水的0.2%。
But switch the source to a river or an aquifer, and the cost of a cubic meter of water can plummet to 10 to 20 cents, and farmers often pay far less.
如果从河流或地下取水，每立方米的成本可大幅降至10至20美分，农业用水的成本甚至更低。
As Bromberg and I followed the Auja spring east, we passed a complexof pumps and pipes behind a barbed-wire fence—a Mekorot well, drilled2, 000 feet deep to tap the aquifer.
我和布朗伯格沿着奥贾泉往东走，经过带刺铁丝网后面由水泵和水管形成的综合设施——麦克罗特的一口井，钻了2000英尺深，进入含水层。
Write in the third person (" the aquifer covers 1000 square kilometers ") or the first person plural (" We see from this equation that acceleration is proportional to force ").
用第三人称写(“含水层涵盖1000平方公里”)，或第一人称复数(“从这个等式我们看到，加速度与力成正比”)。
We cannot address the water challenges of these countries in isolation. We should use every regional watershed or aquifer as an opportunity for stronger international cooperation.
克林顿表示：“我们不能孤立地看待这些国家所面临的缺水问题，而应利用每个区域性分水线或地下蓄水层作为加强国际间合作的机会。
Tiny fractures in rock that can store water sometimes collapse when it's rapidly withdrawn, and then even if the aquifer had water to recharge it, there's no place for it to go.
岩石间细小的破碎是可以储水的，但当地下水被迅速的抽取时，这些岩石会发生坍塌，那么就算以后储水层有水可以再补给，也没有空间再来储存这些水了。
But the rights to divert water-from a river or lake or underground aquifer-are indeed sellable commodities; so too are the plants and pipes that process that water and deliver it to our taps.
然而从河流、湖泊或是地下含水层调运的水确是真真正正的商品；水处理设备和把水送到我们家的水管也是如此。
The Libyans say they may stop growing wheat using water from the NWSAS and the Nubian sandstone aquifer system, the world’s largest fossil aquifer, which they share with Egypt, Chad and Sudan.
利比亚人称他们将停止使用西北撒哈拉水系统和努比亚砂岩水系统（世界上最大的化石含水层，为埃及、乍得、苏丹共同拥有）的水来种植小麦。
But then studies revealed startling news: Albuquerque's aquifer was nowhere near the size it once appeared to be and was being pumped out faster than rainfall and snowmelt could replenish it.
然而随后的研究带来了一个噩耗：阿尔·伯克的地下水储量远远没有看上去那么大，而且正在被飞速地消耗，其消耗速度要远远大于降雨和融雪对地下水的补充。
But then studies revealed startling news: Albuquerque's aquifer was nowhere near the size it once appeared to be and was being pumped out faster than rainfall and snowmelt could replenish it.
然而随后的研究带来了一个噩耗：阿尔·伯克的地下水储量远远没有看上去那么大，而且正在被飞速地消耗，其消耗速度要远远大于降雨和融雪对地下水的补充。
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