查询词典 introduce

This paper is constructed as follows: firstly, to generally introduce logistics and 3PL, analogize the production structure and cost construction in enterprise after comparing with the manufacturing enterprise, and introduce the content of ABC and its applying conditions; Secondly, to construct an ABC apply model.

最后分析了作业成本法在物流企业尤其是国内企业的适用性，并对作业成本法在国内物流企业的实施应用提出了一些建议。

In this thesis,based on the DFT+NEGF first-principles method,we construct a lead-molecule-lead sandwich system with single benzene-based molecule to investigate the relationship between the structure and properties of the molecular devices and the factors that influence properties of the molecular devices.Our computational investigations on these molecular devices are primarily concentrated on the effect of contact geometry between molecules and electrodes,the effect of side groups,the effect of different torsion angle between two phenyl rings and the effect of external electric field.This thesis consists of five chapters:In Chapter one,we mainly introduce the research background and development of the molecular electronics,including the experimental fabrication of molecular electronic components and theoretical simulation methods.Afterwards we discuss the questions that need to be solved in this area.Finally,the main contents of this thesis are listed.In Chapter two,we introduce the theoretical methods used in this thesis, including the main first-principles calculation methods,i.e.,the Density-Functionmethod and nonequilibrium Green\'s function.

本论文拟采用密度泛函理论和非平衡格林函数相结合的第一性原理计算方法，选取苯基小分子作为研究对象，构建了金属电极/有机小分子/金属电极三明治结构体系，系统地研究了苯基分子器件结构的改变与分子电输运性质之间的关系以及影响分子器件电输运性质的相关因素，其中重点研究了分子与电极间可能的接触结构改变、官能团、分子间的扭转角以及外电场对苯基分子电输运性质的影响，本论文主要包括以下五个章节的内容：第一章为综述部分，主要介绍了分子电子学产生的背景、分子器件的研究意义、当前研究分子器件的实验和主要理论方法，以及目前在研究分子器件中存在的一些问题，最后给出了本论文的主要研究内容和技术路线。

Second, it introduce some conception about the internet embedded system. Last, it introduce the practical embeddedsystem-Portable artesian well simulator.

最后重点介绍了具体的嵌入式系统——便携式钻井模拟器中的网络接口设计。

Chapter three .introduce the design principal of crystal polarizing prisms and beam splitter prisms, introduce phase retardation plate in short.

第三章介绍了晶体偏光棱镜的及偏光分束棱镜的设计原理，简要介绍了相位延迟器件和退偏器件。

In this thesis, I introduce the purpose and meaning of my study in this field and also introduce the definition, characteristic, class and use firstly.

本文首先介绍了该论文课题研究的目的和意义，以及数字水印技术的基本概念、特性、分类、用途等，接着介绍了主要的水印攻击方式以及相应的对策，然后介绍了小波变换的基本理论，包括连续小波变换、离散小波变换、多分辨分析、Mallat算法等。

This article takes the teaching of conic sections as an example. By designing worksheets, teachers can introduce the historical material about conic sections to students. By way of using Apollonius' definition of parabola, ellipse and hyperbola, teachers can introduce the geometric aspect of "conic section" to students. By using the concept of " latus rectum " in Conics , we can connect "conic sections"-- representation of geometrical aspect, with "the equation of conic sections"-- representation of algebraic aspect to improving insufficiency of text books.

同时本文也试著从历史文本中寻找材料，简单举例说明数学教师可以如何应用这些史料在几何单元教学上，例如三角函数的正余弦定理，最后再以圆锥曲线的正焦弦为例，说明如何利用数学史料於此单元的教学，尤其是阿波罗尼斯的《锥线论》中对圆锥曲线的3个命题，将此3个命题的内容与意涵，尤其是正焦弦在圆锥曲线的几何意义上所扮演的角色，将其适当地融入教学中，将可使学生真正学习圆锥曲线的几何知识，而不再只是代数形式的几何知识。

Let me introduce you to John Smith I'd like to introduce you to Mary Copper.

我把你介绍给约翰。史密斯。我想把你介绍给玛丽。

In the text, first introduce the constitute, principle and characteristics of the cchp system which is a comprehensive energy system; in the following, overview the domestic development and the research situations of outside in this realm; immediately after, introduce in brief the research object"s engineering general situation and the design projects that be brought up aimed at this engineering in this text; then detailed discuss a kind of lately thermal economics cost absorption method- the method of share the cost of the product"s Exergy according to the ability class, and make use of this method and the product Exergy equivalence method and steam equivalence method to carry economics analysis to the design project respectively,and carry on the economy compared for the calculation of the several kind different cost absorption method from the point of view that the price of the energy Exergy.

文中，首先介绍了热电冷联产这一综合能源系统的组成、原理及特点；综述了国内外在这一领域的发展和研究概况；接着，简单的介绍了本文所研究对象的工程概况及针对本工程所提出的设计方案；然后详细讨论了一种新的热经济学成本分摊方法-按能级分摊产品火用成本法，并分别运用此方法和产品火用等价法、蒸汽等价法对设计方案进行经济性分析，从能量火用价格的角度对几种不同分摊方法的计算结果进行经济性比较。

Firstly, we introduce the technology of seismic geometric attribute for fault identification detailedly at home and abroad. Secondly we study the coherence, texture,curvature attribute and tricolor display technology of RGB to identify fault; In the part of coherence,we compare the traditional algorithms with model and actual data,mainly study the geometric structural tensor and wavelet multi-scale sub-frequency coherent algorithm; In the part of texture attribute, we introduce texture energy, texture contrast, texture entropy and texture homogeneity attribute.By merging texture attributes of different directions,the effect are more clear; In the part of curvature attribute,we study and analyze fractional-order curvature attribute's extraction and its application in fault identification; The RGB display technology mainly introduces how to merge multi-attributes in order to getting more richer and more clearer information.

首先具体先容了地震几何属性识别断层技术的国内外研究现状；然后分别研究了相干属性、纹理属性、曲率属性和RGB三原色显示技术来识别断层；其中相干属性通过模型和实际资料对传统相干体算法进行了对比，重点研究了几何结构张量相干体算法和小波多标准分频相干体算法；纹理属性主要先容了纹理能量、纹理对比、纹理熵和纹理一致性属性，通过对不同方向的纹理属性进行融合，效果更清楚；曲率属性重点分析了分波数曲率属性提取及其在断层识别中的应用；RGB三原色显示技术则主要先容了如何进行多属性融合来或得更丰富、清楚的信息，在此基础上开发了基于。

In second section, I introduce two kinds of second generation model of Currency crises. One is about how currency crash happens under conditional shift in the growth rate of domestic credit. The other is derived for a monetary rule with an escape clause. In third section, I introduce some new developments in currency crises.

第三节在对第一和第二代模型进行简要对比分析和批评的基础上，介绍了近年来西方货币危机理论的一些最新发展，此外在第一节，笔者还简单介绍了关于投机稳定性问题在西方经济学界的一些争论，作为全章分析的一个铺垫。

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