渗流

To study mass exchange relation between them is of important significance to exploit low permeability methane in coal seam.

煤层气在煤层中的流动是孔隙中扩散和裂隙中渗流的综合过程，研究二者之间的质交换关系，对开发低透气性煤层的煤层气具有指导意义。

This paper presents a conclusion and recommendations of proper exploit the coalfield and prevent the water pouring in the mine.

在比较分析开采前后矿区渗流场变化后，提出了合理规划开采煤矿，防治井下水害的建议。

This thesis takes Wudongde hydroelectric power station upstream high rockfill cofferdam as the object to study,and carries out the research on seepage and stability of slope.

本文以乌东德水电站上游高土石围堰为研究对象，从渗流和边坡稳定两方面展开研究。

According to theory of diffusion and permeation,and theory of adsorpt ion equilibrium of commixture gas,the mechanism of increasing coalbed methane production by gas injection is studied, with which it is illustrated for enhancing energy of storing gas stratum, heightening pressure conduction coefficient of storing gas stratum and binging domino effect of competition adsorption by gas injection, consequently yield and ratio of recovery of coal bed methane are also enhanced.

依据扩散渗流和多组分吸附平衡理论，研究了注气开采煤层气的增产机制。研究表明，注气增加储层能量，提高储层压力传导系数并产生竞争吸附置换效应，从而提高煤层气开采时的单产量及回收率。

The seepage velocity in peak stress decreases with the increase of confining pressure, and indicates obvious linear relationship.

煤样的峰值渗流速度随围压的增加而减小，呈现较明显的线性关系。

Under the condition of the steady flow, by means of conformal transformation , the authors derive a production formula of a horizontal well in the center of a reser.

文中在保证地层内具有稳定流动的基础上，利用保角变换对顶底不渗透油藏中心有一口水平井的产量公式进行了重新推导，给出了水平井产量公式的修正公式，并且利用等值渗流阻力法进行了解

A vertical fractured well can bring out two-dimensional flow in the direction of normals of developing ellipse — conjugate ellipse isobar and hyperbola streamline bunches with the two ends of the fracture as their focuses.

垂直裂缝井采液时诱发地层中的平面二维椭圆渗流，形成以裂缝端点为焦点的共轭等压椭圆和双曲线流线族。

By the law of conservation of mass and the principle of effective stress as well as the equilibrium differential equation, an anisotropic coupled model for the analysis of groundwater seepage and stress is developed.

根据质量守恒定律、有效应力原理、以及土的平衡微分方程建立了各向异性渗流场与应力场的耦合分析的数学模型。

Because the effect between flow field and stress field will never continue forever,it is important to ensure the constringency of the result.

由于实际工程渗流场和应力场在一定的条件下趋于平衡，所以在编程时要求确保结果具有很好的收敛性。

Damage of permeability deformation has been studied contentiously since Dongpinghu reservoir dam had been built.

东平湖水库围坝自建成以来，对渗流破坏坝基土的研究即持续不断，但由于工程设计的目的和研究单位出发点的不同，侧重点各异。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。