In chapter one , the author starts out with " visitor " , namely the general term of " tourist " in chapter one , and defines and classifies " visitor " on the basis of international general term and classification , distinguishing the intension and extension of " visitor " for further study 第一章以“游客”即统称的“旅游者” ’为切入点，立足于国际通用的名称和分类，在弄清楚“游客”的内涵和外延的基础上，清晰界定了“游客”的概念及分类。此章为下文的深入研究奠定基础。
Based on laser molecular beam epitaxy , the strain behavior and the corresponding control technology in oxides heteroepitaxial system , especially in ferroelectric thin films with perovskite structure , was systematically studied by using in situ reflected - high - energy - electron - diffraction ( rheed ) . some original and meaningful results were obtained . following aspects were included in this dissertation : the structure of thin films is analyzed by rheed 本论文基于激光分子束外延的基本原理,以高能电子反射为主要监测工具,对氧化物薄膜特别是铁电氧化物薄膜异质外延过程中应变行为及其控制方法进行了系统的研究,并取得了一系列有意义的结果,主要包括以下内容:利用反射高能电子衍射( rheed )的信息对薄膜结构进行分析。
Many factors which affect the epitaxy qualities , especially the porosity of porous silicon and growth temperature , have been studied in detail . it is found that the pre - oxidation of porous silicon can efficiently prevent the boron diffusion during epitaxy . the defaults along { 111 } are the main defects in epitaxial silicon layer 深入研究了影响外延的各种因素，特别是多孔硅的孔隙率和外延温度对外延层质量的影响，发现多孔硅的预氧化可以有效地阻止外延时b的扩散，外延层中主要的缺陷是沿着{ 111 }面生长的层错。
The former part , with the analysis and research of the meaning and the extension and the characters of industrial design , demonstrates the possibility and inevitability of applying computer and internet to aid industrial design and illustrates the state - of - the - art and usual technology . by analyzing the new development and new requests of caid ( computer - aided industrial design ) technology , the article raises the possibility and inevitability of developing internet - based icaid ( intelligent caid ) system , presuming the models and methods and illustrating the key technology of building iicaid , which includes extracting the knowledge of design and the knowledge of user and building the correlative model and studying and developing internet - based cooperative work of form design and the design and realization of software and hardware of iicaid system . finally with analyzing and summing up the correlative knowledge of design and the knowledge of user in nc machine tools form des ign and concluding and researching the results of the correlative experiments , the article raises and explains the researching points and key technology 论文分为上下篇，上篇通过对工业设计内涵、外延的分析和研究，提出了运用计算机、互联网等智能机器、信息技术辅助工业设计的可能性和必然性以及目前的发展状况和一般技术；分析了目前caid技术的新发展和新要求，提出了发展基于网络的智能化caid系统的可能性与必然性，并大胆推测了实现的方法和模型；归纳建立iicaid系统所需的关键技术，即工业设计的领域知识和用户知识的提取及建立模型；网络协同造型设计的规划、集成和优化；系统的软硬件设计和完成；最后，通过对数控机床造型设计相关领域知识的分析和整理，以及相关的实验的总结和研究，提出和解释了在数控机床造型设计中运用iicaid技术的研究重点和关键技术。
The basic concept is the premise of our logic thinking and the base of correct judge and deduction . if there were no a clear understanding about basic words there would bring a lot of trouble in theory and practice of judiciary , such as crime and no crime , this sort and that sort crime , and so on 基本的概念是我们进行逻辑思维的前提，正确判断、推理的基础，而对其内涵和外延的认识不一，势必导致理论研究的不必要争论，尤其是在司法实践中为此常出现偏差，罪与非罪、此罪与彼罪含混不清。
