查询词典 first-order theory

In the thesis, the elastic mechanics theory of temperature stress was introduced at first. Then give a presentation of the finite element theory of temperature stress and how to analyze super-long structure with ANSYS using 3D beam and shell element.

本文首先总结了国内外关于超长混凝土结构温度应力的研究现状，并简要地介绍了温度应力的弹性力学理论，然后概述了应用大型通用有限元软件ANSYS分析超长混凝土结构温度应力的有限元理论。

As to the work about theory analysis, at first, the paper describes the atomizing and humidifying process of the centrifugal nozzle with firing pin type, high pressure and little aperture and liquid physical properties. Later, combining with the structure characters of this kind of nozzle, the paper studies on the theory of the atomizing and humidifying process by three phases, which is water film forming phase, water film falling into pieces phase, and heat and mass transfer between water and air phase in turn.

理论工作方面，首先描述了撞针型高压小孔径离心式喷嘴的雾化加湿过程和液体的物理性质，然后结合撞针型高压小孔径离心式喷嘴的结构特点，将其雾化加湿过程分三个阶段进行机理上的研究，这三个阶段依次为液膜形成、液膜初次破碎及二次雾化、水与空气的热湿交换。

By using the semigroup theory and the characteristic theory respectively,we first get the integral equation.

此类方程已有许多结果（见References），但大部分都是对a，b，c为常数或〓比较特殊时进行讨论的。

Part I expounds the sources of Fromm\'s ideas first from four aspects: his life and academic experience, his family background, the social environment, and a brief list of the sources of Fromm\'s Hominological theory. Then the writing focuses on the two most important elements of the sources which offer decisive influences on Fromm\'s theory of Hominology: Freudianism and Marxism.

首先，从弗洛姆的生活与学术经历、家庭背景、社会环境、弗洛姆人学理论资源概述四个方面介绍弗洛姆；然后，概述弗洛姆人学思想渊源最重要的两个方面：弗洛伊德主义和马克思主义人学思想，并简述弗洛姆综合弗洛伊德主义与马克思主义的可能性。

This doctoral dissertation is composed of several parts: At beginning, the frontal structure, the effects of diabatic heating and orography, the dynamics of frontal circulation and the mesoscale systems associated with front are reviewed. Several problems based on the review are brought forward. First, at present, the semigeostrophic frontogenesis theory is the most appropriate basic framework for the general explanation of the frontogenetic process. However, the comparison between semigeostrophic theory and the observation have revealed some inconsistencies. The newly observational facts increase the inconsistencies.

本博士论文主要由如下几部分组成，首先对锋面结构、地形和非绝热加热对锋的影响、锋生环流及锋面附近中尺度系统动力学问题的历史与现状进行了综述，在此基础上提出需要进行研究的若干问题：(1)、半地转锋生理论直到今天仍是解释锋生过程的最合适的理论框架，但是通过与观测事实比较，人们发现半地转理论不能对许多锋面观测特征给出令人满意的回答，新的观测事实使问题更加突出，这就向人们提出：是什么原因导致半地转理论与实际观测的不符？

The research of uncertain problem becomes a hot point that many scholars are going to discuss. The Vague theory described by this paper is also just a kind of new theory representing inexact knowledge, Gau made the definition of Vague sets the first time in 1993.The paper includes two parts.

对不确定型问题的研究成为当前许多学者的讨论热点，本文所描述的Vague集理论也是一种新的处理不确定问题的工具，它由Gau等在1993年首次提出Vague集概念。

This research commences from the theory foundation first, studying the physical chemistry property of the raw material (common globosity aluminum powder);Mastered the theory of operation and the movement rule of the grinding steel ball in the machine.

本研究先从理论基础入手，研究了原料的物理化学性质；了解掌握了球磨机的工作原理、研磨体钢球在磨机筒体内的运动规律。

Hereinto, the first chapter is theory review, and it reviews the theory of economic growth; the second chapter analyzes the connection among economic growth, human capital, and higher education concretely.

其中第一章为理论评述，将相关理论进行了回顾。第二章对经济增长、人力资本与高等教育投资规模之间的关系进行了具体地分析。

In this thesis, we first deal with the basic notions and elementary results in the theory of homotopy epimorphisms and monomorphisms. Then, we describe the basic definitions of the equivariant homotopy theory, with some important results for our future purpose.

在本文中，我们首先介绍了同伦满态和同伦单态的一些基本定义和结果，随后，对等变同伦论中的一些重要定义和后文中将涉及的一些结论作了简介。

But at present, the fields of enterprise and theory have not attached importance to the problem of enterprise product mix adjustment, which is mainly reflected in the following aspects. The first is that most enterprises maintain existing situation of product and enterprise and solve sale problem by the way of sales promotion while facing market problem. The second is that most enterprises follow others blindly while consider the problem of market entry, but is passive not active while facing market dropout. The third is that in the aspect of management most enterprises don"t make adaptive managerial strategy according to enterprise"s interior and exterior situation, but flow the routine "learn from successful enterprise, elude failing enterprise". The fourth is that the study on the enterprise product mix adjustment from the side of theory is scarce and fragmentary, immethodical.

但是，目前企业产品结构调整的问题还未引起企业界和理论界的重视，主要体现在：一是面对市场问题，大多数企业是维持现有的产品和企业状况，通过促销手段来解决产品销路问题；二是对待企业产品市场进入的问题上，大多数企业是盲目跟进；而对产品的市场退出，大多数企业往往是被动而非积极主动的；三是在经营方面，大多数企业基本上走的还是"学习成功企业，规避失败企业"的路子，没有从企业自身的内部条件出发，为企业量身制定适合的经营战略；四是迄今为止理论界对企业产品结构调整问题的研究还是少之又少，有关产品结构方面的研究还只是零星、不成体系的。

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。