aquifers

Just as serious is the depletion of the aquifers on which farmers depend.

农民们脚下的含水层损耗同样严重。

It was the result of villagers pumping up groundwater from ever deeper aquifers.

原因是村民从更深的蓄水层中抽取地下水。

An early hypothesis by Chakraborti holds that the arsenic is associated with iron pyrites and enters the aquifers by an oxidation process.

加卡波狄较早提出的一个假说认为，砷与黄铁矿结合并透过氧化作用进入含水层。

The lower one, underlying the marine clay, contains several artesian aquifers used for drinking and economic purposes.

较低的一层在海生粘土下面，蕴含着几处用于饮用和商业用途的自流地下蓄水层。

Though forbiddingly dry, the Simpson Desert has aquifers and floodplains that make parts of it ideal livestock-grazing country.

不过，尽管辛普森沙漠干燥得令人可怕，但它也拥有含水土层以及泛洪平原，足以成为放牧的理想国度。

In the name of progress, forests have been denuded, lakes poisoned with pesticides, underground aquifers pumped dry.

以发展之名，森林被砍伐一光，湖泊充满了杀虫剂，地下水抽空了。

Bad drilling lets natural gas seep up to drinking water aquifers and wells, causing some taps to literally burn .

不当的挖掘会让天然气渗入低下饮水层和井中，引发阀门和栓塞的自燃。

Long-term exploitation of thermal groundwater in deep-seated aquifers has led to a continual falling in water levels at geothermal wells.

深层地下热水由于多年长期开采致使水位持续下降，同时由于每年采暖期和非采暖期的交替开采，水位在下降过程中又呈现周期性的波动。

UNESCO, a United Nations body, estimates that 273 aquifers are shared by two or more countries.

据联合国教科文组织估计：由两个或多个国家共有的地下含水层达到273个。

Later studies found resistant bacteria in many other isolated indigenous human populations, as well as in natural reservoirs like aquifers.

后来的研究发现抗药性细菌存在于其他与世隔绝的本土居民中，在由地下水形成的天然水池中也有。

Furthermore, the tidal effects on the freeboard of the groundwater table along the shore also relate to the thickness of the aquifers.

潮汐对地下水水位超高的影响还与近岸潜水层的厚度有关。

Detractors also worry that freshwater aquifers in the area could be compromised by the Dead Sea's water in the event of an earthquake.

批评者也担心，一旦发生地震，该地区的淡水蓄水层将被死海海水所破坏。

Defining sustainability vexes hydrologists too, particularly with ancient fossil aquifers that will inevitably run dry eventually.

对可持续性的定义同样让水文学家很苦恼，尤其是那些最终将不可避免干涸的古化石含水层。

The upper complex overlying the Jurassic clay also contains several aquifers, which are, however, usually significantly contaminated.

侏罗纪粘土层之上的上层复合土里也存在着几处地下蓄水层，但这一层通常受到了很严重的污染。

Irrigation systems around the world are draining the world's underwater aquifers, new research finds.

新研究发现，世界各地的灌溉系统正在吸干世界的水下蓄水层。

Some aquifers can be replenished, though, by trapping monsoon rainwater and directing it underground.

其中有些含水层，只要将雨季时的雨水拦截导流回地下，水位就可以补充回来。

Disposal wells typically are subject to regulatory requirements to avoid the contamination of freshwater aquifers.

处置井一般应服从于管理要求，以避免淡水水层的污染。

How will these countries make up for the inevitable shortfalls when the aquifers are depleted?

一旦蓄水层枯竭，这些国家怎么弥补这部分不可避免的减产呢？

His grandest project, the Great Man-Made River, brought water from southern aquifers to the northern cities.

他最宏大的工程是人工大运河工程，把水从南方的地下蓄水层引至北方诸城。

drug flow Pharmaceuticals and their metabolites enter municipal sewage systems and aquifers from homes, health care facilities, and farms.

毒品流动的药品及其代谢物进入城市污水系统和地下蓄水层从家园，卫生保健设施，和农场。