查询词典 first-order theory

Using aerodynamics theory of turbomachine with encircling control in blades, this paper expounded basic principle and design method for double array cascade GKJ fans which were made for the first time.

本文应用叶片机械绕流控制的气动理论，阐述了双列叶栅的基本工作原理与设计方法，介绍了首次研制的GKJ双列叶栅风机的综合性能试验曲线。

First, this paper gave an brief introduction in terms of theory of the status quo ,basic model, usage area, category, typica l algorithm, capability evaluation, scramble technology, Human vision system and others in digital watermarking technology.

论文首先对数字水印技术的研究现状、基本模型、应用领域、分类、典型算法、性能评价、置乱技术、人类视觉系统等理论进行了综述。

In this dissertation,Co-Cr2O3 and Fe-Cr2O3 granular films with superiorproperties have been successfully fabricated by RF co-sputtering technique underroom and 77K substrate temperatures for the first time.The microstructure,electrical transport and magnetic properties as well as their relation to TMR effectare systematically investigated by various techniques such as X-Ray diffraction,transmission electron microscopy,electrical diffraction,X-Rayphotoelectron spectroscopyand VSM,etc.,the change of electrical transportand magnetic properties in these films with their microstructure is also shown.Someinteresting and valuable results have been obtained after the theoretical fitting ofexperimental data with the existed theory.The temperature dependence of TMReffects in these films and the way to get larger TMR effect is also studied.Our mainprincipal results obtained are as follows:(1)Microstructure and Magnetism

在本论文中，我们采用射频共溅射方法，在室温及77K的衬底温度下首次成功地制备了性能优异的Co-Cr2O3及Fe-Cr2O3系列颗粒薄膜，并利用X-Ray衍射、透射电镜、电子衍射、X-Ray光电子谱及宏观电性及磁性测量等手段详细地研究了Co-Cr2O3颗粒膜的微结构、电性、磁性及它们与TMR效应之间的关系，系统地研究了薄膜的电性和磁性随薄膜微结构的变化，通过实验数据点的理论拟合，得出了一些有价值的物理信息，探讨了磁电阻效应的温度依赖性及获得较大TMR效应的途径，主要内容可概括如下

The article first theoretically analyzes the principle that microcavity reduces threshold 、changes resonant modes of output light and enhances unidirection of the random laser.Then study the structure parameters of different microcavity by transfer matrix.Based on the theory of Maxwell equations and the rate equations, analyze the principle that microcavity reduces the threshold by FDTD method: Changing the confined position,reducing relaxation time and increasing reversing particles, also simultaneously study the influences of the threshold and output light modes by different microcavities and random intensity of random medium.

首先从理论上分析了利用微腔降低随机激光器阈值、改变出射光振荡模式、提高出射光准直性的原理，然后利用传输矩阵法模拟研究了不同的微腔应具有的结构参数，最后以麦克斯韦方程和速率方程理论为基础，利用时域有限差分法分析了利用微腔降低阈值的原理：改变局域化位置、缩短弛豫时间及增大粒子数反转，同时也模拟研究了微腔、随机介质的随机强度对阈值及出射光波模式的影响。

The geometric and electronic structures of the unreduced and reduced Pt-doped ceria with different doping concentration are systematically studied using the first principles method based on the density functional theory with the inclusion of on-site Coulomb interaction.

本文用基于密度泛函理论的第一性原理方法，并考虑了Ce4f电子的在位库仑作用（on-site Coulomb interaction），计算并分析了不同浓度金属Pt掺杂对二氧化铈原子结构、电子结构和化学特性的影响。

The paper introduce fundamental theory and viewpoint on corrosion of iron and steel and zink coating, expounding loss and hazerd of corrosion, first.

本文首先介绍了钢铁腐蚀及镀锌层的基本理论与观点，阐述了腐蚀的损失及危害。

The first part discusses the significance of individualise learning theory.

第一部分论证了个别化学习理论研究的意义。

Through thorough research, it first carries out a systematic review of the theory of industrial structure, evolves general rules from the industrial structure for structural rationalisation, functions and effects etc.

本文首先对产业结构理论进行了系统回顾，从产业结构演变的一般规律到产业结构合理化高度化的实现方式，产业结构的功能和效应等做了比较深入的研究，指出产业结构与经济发展密切相关、互为因果，即是经济发展的必然反映和结果，也是经济发展的动因。

On the point of theory research and the practical operation convinently, the stock-taking classification of the right of first refusal in our country is divided into substantive rules and procedural rules, and probe into them separately.

本文对我国现有优先购买权的分类，主要从便于理论探讨和实务操作角度，按法律规范的基本分类，将优先购买权分为实体性规定和程序性规定两大类，并分别予以探讨。

According to this theory, after learning vocabulary at the first time, we should keep on repeating and memorizing at once.

鉴于这一原理，在第一次学习词汇之后，我们应该坚持不断的重复和记忆。

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。