非粘性的

This kind of equation is from diffusion process with jumps and has important application in stochastic control and finance mathematics.

本文研究一类带有非局部积分项的完全非线性椭圆型方程粘性解的比较原理，这类方程源自带跳跃的扩散过程，在随机控制，金融数学中有广泛而重要的应用。

This makes more and more people pay more attention to studies and applications of numerical simulation in thermal recovery. In this research, we have developed a reliable mathematical model for thermal recovery, which takes a full consideration of the effect of viscos, gravitical and capillary forces on the three-phase flow of gas, water and oil, the effect of the temperature on the medium characteristics of liquid and solid, the phase equilibrium of gas-liquid in each component, heat transportation including connection, conduction and radiation as well as heat losses in both the overburn and underlying strata. In the space discreation of the mathematical model, we have proposed a new method based on the improvement of the conventional nine-points difference approximation, which has a higher difference accurancy.

本项研究以热力采油的主要机理为基础，充分考虑在粘性力、重力和毛管力作用下油水气三相流动，考虑温度对各种流体和固体介质物性的影响，考虑每一组分中汽液两相的相平衡，考虑热在地层中的传导、对流和辐射以及上下盖层的热损失，利用热力学第一定律、质量守恒定律和流体迁移定律，建立了正确可靠的注蒸汽数学模型；在对数学模型进行空间离散时，利用控制有限体积积分法，对以往的九点差分近似作了合理的改进，使其具有较高的差分近似精度：结果表明，该公式的近似精度要比以往文献中所给的九点差分近似精度高，可以认为，在油藏数值模拟中，如果遇到非均质情况，使用这种九点差分近似更合理。

A tetrahedral mesh with up to somehundred thousands nodes can be generated within hours with a personal computer.. By using the general harmonic mean of heat conduction coefficient, a new discretization method in the unstructured grid with anisotropic and heterogeneous media is developed.

生成的网格可以按照给定的纵横比实现剖分（纵横比可高达2000），这样就克服了非结构网格难于在粘性支层内使用的缺点；给出了切平面测度和主曲率测度矩阵的建立方法，结合各向异性网格生成技术，实现了三维空间曲面剖分，为三维实体剖分做了准备。

Any of various viscous substances that are exude d by certain plants and trees and dry into water - soluble,noncrystalline,brittle solids.

树胶某些植物和树木分泌出的一种粘性物质，干燥后成为溶于水的非晶体、易碎的固体

Taking cohesionless soil under plane strain condition as anexample, a simple method to determine the angle of the non-coaxiality between directions of the principal strain increment and the principal stress is proposed, and the formula to evaluate the strain increments due to the rotation of principal axes is derived.

以平面应变条件下的无粘性土为例，提出了一个确定主应力轴旋转条件下主应变增量与主应力方向之间非共轴角的简单方法，推导出了主应力轴旋转产生的应变增量的计算公式，通过试验验证了方法和公式的适应性。

Two and three dimensional steady/unsteady Euler codes are developed to study the hot streak in multistage turbine cascade.

采用商用软件对涡轮级的二维／三维、定常／非定常粘性流动进行了广泛的数值研究，详细分析了热斑现象的特点及一些影响因数。

The behaviour of the viscous fluid flo w with a free surface is expressed by the unsteady Navier-Stokes equation.For nu merical integration in time domain the velocity correction fractional step metho d is used.

在任意拉格朗日欧拉坐标系下，用非定常不可压的N avier-Stokes 方程来描述粘性带自由面流体的运动，在时间的数值积分中采用了速度修正分步法。

And the rock mass as the main object of most engineering practice is developed by all kinds of geotechnical action and force in the long geology history to the complex characteristic of continuous medium, crannied medium and granular medium, to the anisotropic and heterogeneous entity with elasticity, plasticity, viscidity, creepocity and rheology.

作为主要工程对象的岩体是在漫长的地质历史发展过程中经受各种地质营力作用而形成的成因和构造复杂，岩性多样且包含了连续介质，裂隙介质和散体介质特征的，兼有弹性、塑性、粘性、流变性的各向异性的非均质地质体。

Why Baidu Hi is such development pouring foreword main is helpless, because the development base of Baidu is a webpage,the search just is searched after obtaining position of a leadership, web2.0 times comes, the success that the network develops is technical advantage not just, capture an user or the user is agglutinant, become a crucial factor especially the arrival of rich passenger times, baidu is timely rolled out Baidu space with a view to to grow end theory, a series of products of Baidu, such as Baidu knows, Baidu is stuck, Baidu space is sealed undoubtedly, just follow the evolution that at the development trend of whole internet network passivity accepts changes of course, baidu knows, Baidu is stuck it is the successful act that duplicates hard undoubtedly what special need is worth to say is, of Baidu space roll out, baidu space justs to be rolled out, show individual character as main factor stresses development, so that locate Baidu space directly later,be the community that make friend, had been apparently be Baidu Hi roll out prepared

百度Hi为什么是这样倒序发展的呢主要的是无奈，因为百度的发展基础是网页搜索只是搜索达到一个领导地位后，web2.0时代到来，网络发展的成功不仅仅是技术的优势，抓住用户或者是用户粘性，成为一个至关重要的因素非凡是博客时代的到来，百度适时推出了百度空间着眼于长尾理论，百度的一系列产品，诸如、百度贴吧、百度空间无疑都是未知的，只是跟随于整个互联网络的发展趋势而被动采取的发展变革当然，、百度贴吧无疑都是难以复制的成功举措非凡需要值得一说的是，百度空间的推出，百度空间甫一推出，就把个性展示作为一个重要因素突出发展，以至于后来直接把百度空间定位为交友社区，已经很明显是为百度Hi的推出做预备了

On the basis of simulating unsteady viscous flows, coupling the structure dynamics equations, the problem of flutter is investigated for wings, empennage and wing-body configuration.On the basis, many examples, simulating the steady and unsteady viscous flows around wings, are given in this paper.

在模拟非定常粘性绕流的基础上，与颤振运动方程相耦合，分别对机翼、尾翼和组合体流固耦合现象中颤振问题进行了研究，准确求解跨音速颤振临界速度，分析它们在跨音速范围的颤振规律，并研究分析了机翼剖面形状变化对颤振速度的影响。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失