查询词典 dimension theory

For the first patern, elastic dynamics is adopted to study the steady state rolling contact, elastic dynamics incorporating with rigid dynamics is adopted to study the non-steady state. For the steady state, the analytical solution is obtained, and for the non-steady state, the variational formulation to solve the problem numerically is derived For the later patern, the function type friction coefficient is introduced. On the basis of the quasi-stastic theories of constant friction coefficients, both the exact theory and the simplified theory of the function type friction coefficient are established, the computer programms for both the theories are also made out. Using the function type friction coefficient, Shen-Hedrick-Elkins theory's application range is extended to large creepage .

对于速度对接触体力学特性的影响，本文采用弹性动力学方法和弹性动力学与刚体动力学相结合的方法分别对稳态和非稳态两种情况进行了研究，得到了稳态情况的解析解，给出了对非稳态情况进行数值求解的变分公式；对于速度对相关物理量的影响，本文主要讨论了速度对摩擦系数的影响，在滚动接触准静态理论的基础上引进了函数型摩擦系数，建立了函数型摩擦系数的滚动接触准静态精确理论和简化理论，并分别编制了相关的计算程序，还用函数型摩擦系数将简便的Shen-Hedrick-Elkins理论的适用范围扩展到大蠕滑区。

In order to analyze the stiffness of 3D 4 directional braided composites, the homogenization theory based on the multi-scale perturbation theory was used as the basic theory. The virtual displacement principle was used to educe the homogenization formulation of effective elastic modulus and the schemes to solve the problem using finite element method. The effective elastic modulus of 3D braided composites were predicted by this method and the calculation results agree quite well with experiment results.

在对三维编织复合材料刚度性能的分析过程中，以基于小参数渐近展开和多尺度摄动方法的均匀化理论为理论基础，用虚位移原理导出了等效弹性模量的均匀化列式及其有限元求解方程，从而通过细观和宏观有限元的数值分析方法预测了三维四向编织复合材料的等效弹性模量，预测结果与实验结果较为吻合。

A numerical model of 3D, four phases, multicomponent percolation and a balance equation for rock unit are established and solved by using effective stress theory, mass conservation theory, virtual displacement theory and lost work equivalence principle.

热采作为一种有效的稠油开采方式虽然被广泛采用，但其开采成本相对较高；而出砂冷采作为一种低成本的稠油开采方式，近年来已经在稠油油藏的开发中得到很好的应用。

The main contents of this paper is used in college to learn the theory of the mechanics, control theory, mechanical design and computer programming technology, and mechanical theory to simulation, including through the establishment of two parts, kinematics and dynamics of the theoretical models (including Straight leg with the knee model and the model), the use of simulation software to achieve the whole process of Walkabout sports simulation, and to study the mass center position, slope angle and other parameters of walking gait characteristics of the device, and to find the law of passive walking, in order to further less energy-consuming research to lay the foundation of the robot.

本文的主要内容就是运用在大学期间所学到的理论力学、控制理论、机械设计以及计算机编程技术，进行理论推导和力学仿真，通过建立包括运动学和动力学两部分的理论模型的（包括直腿模型和带膝关节模型），利用仿真软件实现行走器整个过程的运动仿真，并研究质心位置、斜面倾角等参数对行走器步态特征的影响，从而找出被动行走的规律，为进一步研究耗能少的机器人奠定基础。这一段翻译成英文拜托别用在线翻译那种很多都是错的

In the first chapter of this thesis we review the classical Kaluza-Klein theory and modern Kaluza-Klein theory proposed by Wesson: the Space-Time-Matter theory.

本文综述部分为第一章和第二章。第一章介绍了经典的Kaluza-Klein理论和Wesson教授提出的现代Kaluza-Klein理论即Space-Time-Matter理论。

However, the theory of stochastic differential equations, the theory of Wiener measure, and the theory of entropy have gone far beyond the original purpose of their study.

他们发展出来的如随机微分方程，维纳测度沦，熵论等，最终都远远超出它们原来的动机。

Markowitz's portfolio theory is tremendous achievement in modern finance, but in his theory, stock price yield obey to normal distribution which have windage with comparison to the fact. Later, many scholars extended and improved his theory.

Markowitz 的证券组合理论是现代金融划时代的成果理论，但是理论中假设股票价格收益率的正态分布与实际情况有偏差，后来许多学者在此基础上作了改进和完善。

Constructed "Singlecenter-sixphase-eightseries" structural theory models for psychological health, included support structure theory model, 2-pole, as well as several psychological health structural theory models: 4 areas, 8 level, acetabuliform, sphericity, 24 aspects, 72 special, 144 elements.8. Broaden the road towards popular development of psychological health.

构建了心理健康一心六相八系结构理论模型；包括支柱结构理论模型：2极结构理论模型；还有心理健康的4领域、8层次、碟型、球状、24方面、72专项、144要素多种结构理论模型。8、拓宽了心理健康测评的大众化发展之路。

Its proposal of BPR theory brought about a serious challenge to Adamas Smith's "theory of division" which has controlled management theory and practice of enterprises for 200 years.

它的提出使得 200年来一直主宰着企业管理理论和实践的亚当·斯密的&分工理论&受到了严峻挑战，被称为管理史上的又一次革命。

The antirealism and the scientific realism are in sharp opposition, they deny the objective substantiality in scientific cognition, and"the theory entity"required in scientific theory, especially objective substantiality of the unobserved"the theory entity".

反科学实在论与科学实在论针锋相对，他们否定科学认识对象的客观实在性，否定科学理论要求的&理论实体&，特别是不可观察的&理论实体&的客观实在性。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。