渗流的

Experimental study of depressurization and augmented injection with surfactant of low concentration is carried out in several low permeability oilfields.

在绝对渗透率难以改变的客观条件下，通过改变油、水及岩石间的界面张力，从而改善油、水渗流性，提高水相渗透率，降低低渗透油层注入压力，并在一些低渗透油田开展了低浓度活性剂降压增注试验研究，取得了一定的效果。

Based on the theories of porous medium seepage and elasticity, the partial differential equations on the response of the well water bearing system to the Earth tide signal are derived under the condition of changing well radius.

根据多孔介质渗流理论和弹性理论，在井孔变径条件下，得出水井含水层系统对潮汐信号响应的偏微分方程，认为井径变化相当于改变了井水柱的有效高度，从而影响了水井含水层系统的固有振动周期。

FASS(field amplified sample stacking) is a technique for oncolumn enrichment in capillary zone electrophoresis. The distribution of solute in column during injection can be divided into two parts: the stack zone in running buffer and the sample solution zone imported by electroosmosis.

直接柱头场效应进样是一种毛细管区带电泳柱内富集，其进样过程中样品在柱内的分布可分为两部分，即在运行缓冲溶液中的堆积区段和由电渗流引入的样品溶液区段。

Considering that rock's permeability is exponential function along with formation pressure and starting from nonDarcy percolation theory of gas at high speed, this paper derives a new pseudo pressure binominal exponential deliverability equation and its solution method.

在考虑岩石渗透率随地层压力呈指数函数变化的基础上，从气体的高速非达西渗流理论出发，推导出新的拟压力二项式产能方程及其求解方法。

Based on the principle of variation, boundary value problem of pressure partial differential equation was transformed into the extreme value problem of fonctionelle and finite element equation of flow model was deduced for calculating the simulation result.

根据变分原理，将压力微分方程的边值问题转化为泛函的极值问题，建立了渗流模型的有限元方程。

Based on the mechanisms of foam flow in porous media, a new parameter of foam comprehensive value was employed to evaluate foamers, which denoted the comprehensive characteristic of foamer's foaming ability and stability.

论文根据氮气泡沫渗流机理，提出将反映起泡剂起泡能力和稳定性的综合性能的泡沫综合值作为主要参数，用于氮气泡沫调驱用起泡剂的筛选。

The derivatives of the nonsmooth equations are computed to make the generalized derivative matrix nonsingular. Then the nonsmmoth damped Newton method is used to solve them.Analytic solutions of the KdV equation with variable coefficients: Shallow water wave problems belong to problems of free surface wave, and can be molded by the nonsmooth equations model given above in principle.

在前面建立的非光滑方程组数学模型和固定网格法基础上，利用广义导数的概念给出了求解渗流自由面的一种新方法-----非光滑阻尼牛顿法，该法是对非光滑方程组求导，适当的处理广义导数矩阵使其非奇异，利用非光滑牛顿法求解。

Nowadays,the properties of sediments changed by bioturbation have been concerned by International Geosphere and Biosphere Plan, especially the problems about the bioturbation and hydrodynamic coupling led to the tidal flat sediment flow differences.

如今，生物扰动对潮滩沉积物性质的改变已越来越引起国际地圈、生物圈计划的关注，尤其是生物扰动和水动力的耦合作用影响潮滩沉积物渗流差异问题。

In this article, seepage and stability against deep sliding are studied and discussed in detail as regard to Dongzhang Dam which has glacis weak surfaces in the dam foundation, some valuable results are obtained.

本文结合坝基含有缓倾角软弱夹层的东张水库大坝工程，对坝基渗流及抗滑稳定性问题进行了较为深入的研究，得出了一些有意义的结论。

A numerical model for infiltration flow and diffusion of gas in heterogeneous goaf was established.

建立了非均质采空区瓦斯渗流-扩散的数值模型，模拟了瓦斯在采空区中的涌出、分布及积聚的流体力学原理。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。