数值方法

This method can be used to calculate flow field with arbitrary irregular shapes. It also maintains the excellent characters of TVD scheme: high resolution, accurate solution in smooth region. Thus it is a good method in numerical simulation of compressible fluid dynamics.

本方法可用于计算具有任意不规则几何形状的流场，并且保持了TVD方法高分辨率，光滑区高精度的特点，是可压缩流体动力学数值计算中的好方法。

On the basis of similarity principle study of the ASP ternary complex flooding, we adopt the method of simplicity, take the foam into differential equation, construct the similarity criterion and the similarity principle of differential conditions, the similarity criterion and the similarity principle are checked and analyzed by numerical simulation and physical simulation method.

在三元复合驱相似原理研究的基础上，采用简化的方法，将泡沫相引入微分方程，建立了泡沫复合驱物理模拟全相似准数及不同条件下的相似准则，并利用数值模拟方法、物理模拟方法对准则进行了检验和敏感性分析。

An approximate solution can be derived by using Crammer\'s rule.Illustrative examples are given to show that the method in the present paper is simple and efficient.

采用微分的方法首先把两点边值问题转化为Fredholm积分方程，再应用本文的方法求解，通过数值例子展示了该方法的简单有效性。

The second part is the judge method and its improvement method of a matrix is a diagonally dominant matrix: Introduces some basic methods to judge a matrix be a diagonally dominant matrix .Gives some improvement methods, and some number examples.

第二部分为广义严格对角占优矩阵的判定方法及其改进：介绍判定广义严格对角占优矩阵的一些基本方法，给出一些广义严格对角占优矩阵判定方法的改进，并给出数值例子。

The analysis results show the differential geometry method is effective for controlling chaos of power system and its control property is better than that of other methods.

研究表明：采用微分几何方法能够对电力系统的混沌行为进行有效控制，控制效果与其他混沌控制方法相比，具有明显的优越性。理论分析和数值仿真结果都证明了该控制方法的有效性。

The matrix analysis has already all kind of method. The back part of this document, according to the matrix's elementary operation, gives one matrix analyze method, this method can more earthly and convenient analyze the matrix, and also provide the real example of the value analysis.

矩阵的分解已经作出了各种方法，本文在后半部分中根据矩阵的初等变换，提出了一种分解矩阵的方法，该方法能够更通俗便捷的对矩阵进行分解，并用数值实例进行了分析。

Based on the good essential boundary condition processing capability of radial point interpolation meshless method, as well as the better computing efficiency of Element-free Galerkin method, the mixed method coupling EFG and RPIM is used to deal with the essential boundary condition.

基于径向基点插值无网格方法良好的本质边界条件处理能力，以及无网格伽辽金方法较好的计算效率，应用混合元法耦合两种无网格方法进行了本质边界条件的处理，数值算例结果表明：混合元法简明有效，计算概念清晰，易于编程计算。

The modified exponential approach law method is employed to design controller. The simulation result demonstrates that the method in the paper is a viable and attractive control strategy for seismically excited tall building.

最后用两个数值算例分别对改进的指数趋近律方法和带有补偿器的滑模控制设计方法进行了仿真，结果表明两个方法都是有效的。

This paper presents a numerical simulant solution of a scatheless measurement of helium pressure in fuel rod by measuring clad temperature indirectly based on the principle that helium has different heat transfer characteristics at different pressure.

用数值模拟的方法对一种用温度测量进行燃料棒内氦气压力无损检测的方法进行了模拟计算，该方法的基本原理是氦气在不同压力下具有不同的传热特性。

The paper uses two-dimensional difference method to develop a code named RODTRAN to calculate the transient two-dimensional temperature distribution within the fuel rod.

用数值模拟的方法对一种用温度测量进行燃料棒内氦气压力无损检测的方法进行了模拟计算，该方法的基本原理是氦气在不同压力下具有不同的传热特性。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。