理论

A typical 3-RPS parallel platform manipulator mechanism is firstly studied by means of the above theory. The principal screws of this mechanism under three different configurations are identified by means of the conic section and the quadric degenerating theory, respectively.

以上述理论为武器首先分析典型的3-RPS并联平台机构，分别应用二次曲线分解理论和二次曲面分解理论，识别了该机构在三种位形下的主螺旋。

The analysis framework is established theoretically based on International trade and foreign direct investment as the basic conjunctional mechanism of the interactive evolution of industrial structure. Moreover, the paper lays stress on the statement in comparison with international materials and the varied stages of industrial structure, whilst engaging in the empirical analysis to the industrial structure in special economy with data.

论文的研究采取理论与实证相结合的方法，理论上以国际贸易和国际直接投资理论为产业结构互动演进的基本联接机制建立分析框架；针对特定经济体产业结构的分析则以实证数据为基础，同时注重在国际比较中展开论述，并强调产业结构变动的阶段性。

Therefore it seems considerately important to set up the system and methods of risk evaluation of product innovation

本文首先对国内外关于产品创新项目风险评价的研究动态进行分析，以弄清产品创新项目风险评价的时代背景，并分析创新概念的产生、产品创新理论的发展、风险评价思想的提出，理清风险评价理论的发展脉络，为论文的研究工作奠定了理论基础。

These theories are mainly: neoclassicism, structuralism, theories of transfer and constringency in neoclassicism and international trade model.

这几种理论分别是发展经济学中的新古典主义典思路和结构主义思路，新古典增长理论中的迁移和收敛理论，及国际贸易模型。

The constructionism teaching theory is regarded as a revolution of learning theory and teaching theory, which is a progress in educational psychology in the current age.

建构主义教学理论被视为是对传统学习理论和教学理论的革命，是当代教育心理学的新进展。

In theoretical study, the author analyzes the theoretical basis for the traditional medical audio-visual teaching materials, and the analysis of the role of constructionist theory and knowledge management in the redevelopment of traditional medical audio-visual teaching materials in web-based environment is especially focused.

理论上，笔者分析了传统医学视听教材的理论基础，并重点分析了建构主义理论和知识管理思想在网络环境下传统医学视听教材再开发过程中的作用。

In this dissertation,Von Numann and Morgenstern Axioms are analyzedagain at first.It is pointed out not only that preference relations are often latticeordered,but also that the transitivity axiom,along with the independence axiomand the continuity axiom is still rational to a high degree,then a new set ofaxioms for lattice-order decision-making behavior is established.At last,relatedsubjects based on lattice in preference theory,utility theory,decision-makingmethods,multiattribute decision-making,and group decision-making are studied.In this way,the lattice-order decision-making theory is framed.Main creativeresults are obtained as follows

本论文重新审视了Von Neumann-Morgenstern理性行为公理体系，对以前学者较少涉及到的连通性公理提出了质疑，指出偏好关系具有格特征，而传递性公理、独立性公理以及连续性公理在很大程度上仍具有合理性，进而创建了格序决策行为公理体系，研究了基于格的偏好理论、效用理论、决策方法、多目标决策以及群决策中的相关问题，初步构建了格序决策理论框架，主要研究成果如下

In first part,The Theory and Simulation on Reconstruction Algorithms,webuild a well-defined mathematical model for OCT,on which we prove more than 10theorems,analyze and answer a series of significant questions about OCTreconstruction,from existence, uniqueness,continuousness,stability to sampling,resolution,ill-posedness and accuracy.

在上篇重建算法的理论与实践中，我们将OCT抽象为基于n维Radon变换的数学模型，从而分析、讨论、回答了从存在性、唯一性、连续性、稳定件到采样条件、分辨能力以及病态特件和重建精度等一系列在理论和了OCT的重建理论体系。

In 3D scalar Helmholtz equation computation, for the first time, this dissertation proves that there is an analytical solution of infinite series convegence for the problems satisfying the MT expansion condition, derives the MT general solution formula and the using laws, proves or explains the using rules that are used in the GMT and but they can't be proven or explained by The GMT.

首次从理论上证明，在三维静电场分析中，存在一种无穷级数收敛，且有一定普遍性的解析解；推导出三维静电场分析的多极理论通解及其使用规则，证明或解释广义多极技术不能证明或解释的若干使用规则，用多极理论求解工程实际中的三维静电场边值问题。

In 2D eddy current field computation, for the first time, this dissertation proves that there is an analytical solution of infinite series convegence for the problems satisfying the MT expansion condition, derives the MT general solution formula and the using laws, proves or explains the using rules that are used in the GMT and but they can't be proven or explained by the GMT, and solves several real engineering examples of 2D eddy current field boundary-value problems by the MT.

本文从电磁理论和有关数学定理出发，通过引入内极、外极、内交角的概念，建立一种新的电磁场计算体系——电磁场分析中的多极理论；从理论上证明，在电磁场分析中存在一种无穷级数收敛，且有一定普遍性的解析解。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷