渗流的

The research of influent problem of earth-stone dam has important theoretical meaning and project application value.

土石坝的渗流问题研究具有重要的理论意义与工程应用价值。

The second part(Chapter 4,Chapter 5 and Chapter 6)is devoted to freeboundary problems(inverse boundary value problems or geometric inverse prob-lems)for elliptic systems of partial differential equations in continuum mechanics.

第二部分(即第四章、第五章、第六章)讨论力学中椭圆型方程组的自由边界问题(也称逆边值问题或几何反问题)及数值分析，主要涉及到渗流与气体动力学中的一些问题。

The exact solution and approximate analytical solution of the mathematical model for constant rate production are obtained by using Laplace transform.

引入异常扩散指数θ，运用该参数来刻画裂缝网络的连通状况，并能反映渗流发生在裂缝网络时的异常情况。

This paper deals with the long time behavior of solutions to the homogeneous Neumann problem of the nonNewtonian filtration equation.

研究含内源与一阶项的非Newton渗流方程齐次Neumann边值问题解的长时间渐近行为。

The parabolic partial differential equation is an important type of mathematical physical equations. It can describe the problems of heat conduction, seepage flow and diffusion, et al.

抛物型偏微分方程是描述热传导、渗流、扩散等过程的一类重要的数学物理方程。

Three parameters were considered in this new model,i.e, the average rate of fluid through every crack,the number density of cracks in per unit volume and the extent of cracks＇ penetrance.

笔者在此基础上建立起一个新的渗流模型，着重考虑了3个因素，即：流体通过每一裂隙面的平均流量；单位体积内裂隙的数密度；裂隙贯通程度。

The study on the percolation mechanism of low-permeability gas reservoirs is conducive to establish reasonable and effective development policies.

研究低渗透气藏的渗流机理，有利于制订合理、有效的开发方案。

The study on the percolation mechanism of lowpermeability gas reservoirs is conducive to establish reasonable and effective development policies.

研究低渗透气藏的渗流机理，有利于制订合理、有效的开发方案。

In this study, the 3-dimensional numerical model of unsaturated zone soil moisture is improved by coupling the modular of the infiltration water from the single ring permeameter. The improved VSF was integrated with the optimization program to produce an inverse model for soil hydraulic parameter optimization.

文章在三维非饱和带水分模拟程序VSF基础上，加入了单环入渗水流计算模块，并将改进的VSF与参数优化程序LEVMAR相耦合，构建了适用于单环入渗试验的土壤水力特征参数反演程序VSF-LEVMAR。

There exit complicated non-linear characteristics between gas flow velocity and pressure gradient in lots of discovered natural gas reservoirs.

在国内外已发现的大量气藏中，气体渗流速度与压力梯度之间存在复杂的非线性特征。

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。