还有一种可能就是它们随着地下水流到了那里。
Another is that they migrated there in underground water currents.
水文工作者很关心地下水流问题的求解。
Hydrologists are often interested in the solution of subsurface-flow problems.
地下水流到地表的地方，就成为了绿洲。
Where underground water comes to the surface, there are oases.
本书的目的是描述地下水流理论的要点。
It is the purpose of this book to describe the elements of subsurface-flow theory.
本文应用GMS软件，建立石家庄市地下水流模型。
The GMS software is applied to set up the groundwater model of Shijiazhuang city.
在此基础上建立了对地下水流场进行预测的数值方法。
A numerical medel for groundwater table forecast was developed, then.
在此基础上建立了对地下水流场进行预测的数值方法。
Then a numerical model for groundwater table forecast was developed.
压实流盆地被认为是具有离心流模式的地下水流系统。
Compaction driven flow basins are believed as existing typical centrifugal flow regime of underground water.
本文阐明了地下水流经含锌岩石是锌矿泉水形成的前提。
The premise of the forming of Zn mineral water is the groundwater flowing through Zn-bearing rocks.
地下水流是水于地下蓄水层或地下水位线以上的空间流动。
Subsurface flow is the flow of water underground, in the vadose zone and aquifers.
地下水系所研究的范围通常是一个相对完整的地下水流域。
Studied area of ground water system is usually a ralaction integrated valley of ground water.
该模型是一种地下水流系统水均衡模型和线性规划模型的耦合。
This model is made up of the water balance model of the groundwater flow system and the linear programming model.
利用该模型计算了地下水可开采量及地下水流场和地面沉降的预报。
It can be used to forecast the groundwater flow, land subsidence and the workable reserves.
用数值解析研讨了降雨渗透变化坡面的地下水流的进展和衰退过程。
The development and decline of subsurface flow in soil changing slope due to rainfall infiltration were studied with numerical analysis.
地下水流的流动会使得沙粒积累，并使得表面变得粗糙，从而颜色更深。
A subterranean flow of briny water could rearrange sand grains or alter surface roughness in a way that darkens its appearance.
本文提出了模拟裂隙与断层含水层中地下水流动的一种新的数值方法。
A new numerical method to simulate ground water flow in fractured or faulted aquifer is presented.
最后采用响应矩阵法耦合地下水流数值模型与优化模型建立了管理模型。
Finally, coupling the groundwater flow numerical model and optimization model constructed management model using response matrix method.
针对地下水流模拟结果类型，研究地下水流模拟结果可视化表达的方式。
Finally, aiming to the simulation result type of groundwater flow, the visualization expressing fashion about groundwater flow simulation result is researched.
硫酸根离子呈现北低南高分带性可能与地下水流动与大陆咸化作用有关。
The sulfate radical ion shows hight in south and low in north is possible relate with the ground water flows and the mainland salty function.
煤矿开采过程中的矿坑排水对地下水流场和地下水资源利用具有强烈影响。
The drainage in a coal mine under exploitation may give a strong impact on the underground water flow regime, causing negative influence on the development of the groundwater resources.
因此，在进行现地地下水流数值模拟时，水力传导系数不能只假设为单一值。
This analysis indicated that the hydraulic conductivity could not be assumed as a constant value when groundwater flow was simulated with numerical model.
基于地下水流场、温度场、化学场等的示踪法可以弥补地球物理勘探的不足。
The tracer method, which is based on flow, temperature, and chemistry fields, can make up the shortage of geophysical exploration.
而在钻孔测量温度时，由于地下水流动的影响，钻孔温度曲线将发生异常变化。
Moreover, influenced by the movement of groundwater, there will be abnormality in temperature distribution curve in borehole.
当挖方位于天然地下水面以下时或有地下水流经时，排水就成为一个主要的工序。
Dewatering becomes a major operation when the excavation lies below the natural water table and intercepts the groundwater flow.
95%以上的水最后流入海洋中，作者说，大量地下水流入海洋，成为海平面上升的重要因素。
More than 95 percent ends up in the ocean, the authors say, where the quantity of groundwater reaching the sea is making an important contribution to sea level rise.
说这些化学物质表明地下水流到火山口表层后产生了矿床，然后才又渗透到了地下。
Squyres says the chemicals suggest the mineral deposits remained after ground water came to the surface of the crater floor and then seeped back into the ground.
通过研究常州-武进地区地下水流场的3维数值模拟，揭示了该地区产生地面沉降的主要成因。
This paper aims at the study of 3D numerical simulation of the groundwater flow field of the Changzhou-Wujin district, for revealing the main cause of the depression of the ground surface.
以非均质各向同性渗流模型仿真地下水流，用不规则三角网格有限差分法求解三维数值仿真模型。
The groundwater flow is simulated with the seepage model of heterogeneity isotrope, and the partial differential equations are solved with finite difference scheme of irregular triangle net.
本文分析了河水与地下水不同作用形式下的补排关系，给出了河流在地下水流模拟中的两种处理方法。
The article analyzes the relation between recharge and discharge under the different function of groundwater and stream and given two treated methods for stream in groundwater flow simulation.
上海地区地下水流系统是长江三角洲系统的一个子系统，但由于河口三角洲这一独特环境，使其独具特征。
Groundwater flow system of Shanghai area is part of regional flow system of Yangtze River delta; however, it has its own characteristics due to special environment of estuarine delta.
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