含水层

There are three types of aquifers: perched, unconfined, and confined.

含水层有三种形态，分别是上层滞水、潜水和承压水。

Untrammelled industrialisation , particularly in poor countries , is contaminating rivers and aquifers .

不节制的工业化，尤其是在穷国，正在污染河流和地下含水层们。

Coal-bearing seams in Shenyu mine area inclines northwest, the bedrock thickness on the coal seams increases northwest, and there are generally red soil water-resisting layer on the bedrock. To study on the coal-water friendly geological conditions for the water-resisting layer during the coal mining process, and to determine mining zones without causing obvious water table decline are an important approach to the water-conserving mining in the fragile ecological mine area of North Shaanxi.

榆神矿区含煤地层整体向北西倾斜，煤层上覆基岩厚度向北西方向增大，基岩之上普遍分布有红土隔水层，深入研究煤炭开采过程中不对含水层造成破坏的煤水共生地质条件，确定既可采煤、又可实现水位不明显下降的区域，是陕北生态脆弱矿区保水开采的重要途径。

The concentrations of CODcr and NH4+ vary from low to high, then from high to low in the process of refuse leaching, that is to say that there are three phases which are aerobian decomposition, facultative aerobian and anaerobian decomposition;(3)The time of landfill reaching to stabilize under the condition of filtration, for landfill of Jinqianpu, is at least 86 years if CODcr is regarded as a index; but is about 98 years when NH4+ as an index;(4)The column leaching experiment simulated is carried on interactivity between leachate and different lithologic characters, water-bearing media of different thickness. Some parameters can be determined by calculation, such as, the retained factor and hydro-chemical transportation rate of pollutants in suspended media, which quantitatively analyse the suspended soil capability of components purification and the pollution scope of water bearing media.

垃圾淋滤过程中和经历了一个由低到高、再由高到低的过程，即垃圾填埋过程中经历了好氧分解、兼性好氧分解及完全厌氧分解等三个阶段；（3）垃圾组分在淋滤条件下分解达到稳定的时间，对于金钱堡垃圾填埋场，若以作为考核指标，填埋场达到稳定化时间至少需要86年；若以作为考核指标，则填埋场达到稳定化至少需98年的时间；（4）对垃圾浸泡液与不同岩性、不同厚度含水层介质之间的作用进行了土柱淋滤模拟试验，通过计算污染质在包气带介质中运移的阻滞因子和水化学迁移率等参数，定量地描述了包气带土层对污染质的净化能力和污染范围。

Through the analysis of factors relating to aquiferous features, contact with water, groundwater recharge, run-off , discharge and groundwater chemical characteristics, we determine the hydrogeological conditions in the NO.

通过对大南湖煤田一井田含水层特征、水力联系、地下水补给、径流与排泄及地下水化学特征等因素的分析，确定该井田水文地质条件类型，为矿床开采提供依据。

It is near to a confined aquifer or aquiferous fault, quicksand layer, gravel layer, karst cave or depressed pillar

接近承压含水层或者含水的断层、流砂层、砾石层、溶洞、陷落柱的

Through the analysis of factors relating to aquiferous features, contact with water, groundwater recharge, run-off, discharge and groundwater chemical characteristics, we determine the hydrogeological conditions in the NO.1 mine field and suggest a basis for deposit exploition.

摘要通过对大南湖煤田一田含水层特征、水力联系、地下水补给、径流与排泄及地下水化学特征等因素的分析，确定该井田水文地质条件类型，为矿床开采提供依据。

The author has analyzed the three aquiferous groups separately. Based on above these, Huanhe aquiferous group and Luohe aquiferous group, which distribute range wide, aquifer stratum thickly, natural resource abundantly, are the main aquiferous stratums to supply water of the meaning.

通过对这3大含水岩组分别进行了分析认为，洛河含水岩组和环河含水岩组分布范围广、含水层厚度大、天然资源丰富，是盆地区具供水意义的主要含水岩组。

Luohandong aquiferous group distributeas limited, thickness widely different, water quality changing heavily, besides east area of Gansu Province, value of supply water is relatively little in most areas.

罗汉洞含水岩组因分布面积小，含水层厚度差异大、水质变化大、除陇东地区外，大部分地区供水价值较小。

By analyzing the physical geography, regional hydrology and geology information, and groundwater equilibrium of DunHuang Basin, this paper simulates the aquiferous layer which has the thickness of 250 m, and consider it as two dimension mixed layer which is heterosphere and isotropy.

通过敦煌盆地自然地理和区域水文地质及盆地地下水均衡分析，将250m左右深度处稳定流线以上的含水层作为数值模拟对象，概化为非均质各向同性平面二维流混合层；将研究区划分为9个参数分区，并离散为2km×2km的网格，总共划分为34行、42列，共1428个单元，其中：无效计算单元215个，有效计算单元1413个，流量计算单元45个。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。