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1·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。

2·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。

3·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。

4·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。

5·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。

6·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。

7·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。《柯林斯英汉双解大词典》

8·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。

9·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。

10·An aquifer is a water - bearing rock stratum such as sandstone and chalk.

地下蓄水层是一些有水的岩石层，如沙岩和白垩岩。

(1)confined aquifer承压含水层；被封含水层

(1)unconfined aquifer非承压含水层；不受压含水层；无压含水层