Each student should introduce his or her article , summarizing it and reading one or two representative paragraphs to the class . presentations should be about 3 - 5 minutes 每个学生都要介绍自己的文章，扼要说明并且为全班朗读一到两段具代表性的段落。报告应该是3 - 5分钟。
If you fill the following form and submit it , the system will send your friend a short introduction about the web sites as well as the web site addresses 如果您填写下列表格中您朋友的电子邮件地址并发送出去，本网站系统会自动将我们网站的扼要说明及网站地址告知您的朋友。
Abstract : the paper briefly descibes the development of standards and specifications of product - data exchange since 1987 , particularly with the development of the conformance tests 摘要：本文扼要说明自1987年以来产品数据交换标准和规范的发展情况，特别是关于适用性检验的发展情况。
Section 2 . 2 . 1 of the ifp requires that " except for the summary description of proposal and the financial proposal , no reference to monetary or financial value should be included in the proposal unless otherwise expressly required . 1节规定，除非另有明文规定，否则建议者只须对其发展建议和财务建议作扼要说明，而不应在建议书内提述金钱上或财务上的价值。
Based on the description of attributive and spatial database structure and the logic relationship for the system , the graphic platform and the database platform for the system is briefly explained herein with the basic principle and structure for the design of the system 通过描述该系统空间和属性数据库结构和系统逻辑关系，扼要说明了系统采用的图形平台和数据平台，介绍了系统设计的基本原则和基本结构。
Finally , the input , output , operation , and error press are designed . three kinds of users are authorized . in addition , this paper not only describes the code design roles and methods , but it also puts forwards the requirement of data transformation between new and current systems 最后，分别对系统的输入输出、运行、出错处理等进行了设计，对系统的三类用户进行了授权，另外，本文除对代码设计的原则和方法进行了扼要说明，还对新旧系统之间的数据转换提出了要求。
In the first chapter , the fundamental concepts on the theory of liquid crystal are simply narrated , the definition about the flexoelectric effect and the expression on the polarization energy induced by the flexoelectric effect are expounded in detail , the research progress to the flexoelectric effect is illustrates in summary , then the work principle of liquid crystal display is expanded 本文第一章简单叙述了液晶理论中的基本概念，详细阐明了什么是挠曲电效应以及由挠曲电效应引起的极化能量表达式的形式，对挠曲电效应的研究进展作了扼要说明，紧接着就液晶显示器的工作原理进行了阐述。
Let me say briefly on that front that global economic growth remains solid and the prospects are for continued good growth next year , in particular here in the u . s . at the same time , the world economy faces challenges from high energy prices , global imbalances , protectionist pressures and the risk of higher inflation 请允许我就此作一扼要说明：全球经济增长仍然强劲，特别是在美国，明年的增长前景持续看好。但同时，世界经济也由于能源价格高涨、全球失衡、保护主义压力以及通货膨胀风险增大而面临挑战。
This paper , beginning with a brief description of the main forms and significance of order change of chinese grammatical items , deals with whether the structure and sematic or meaning will change when morphemes , words and phrases shift in order and stresses the unique expressive function of order change 摘要文章在扼要说明汉语语法项目序变的主要形式及其重要性的基础上，着重从语素、词、短语等许位变换后结构和语义是否发生了改变，分析了汉语语法项目序变的特异表达功能。
This paper is at introduction foundation of cryptography , analyzes x . 509 certificate , has explained the principle of pki and function of each part , and combines the author ' s project development , explains the running environment and systematic characteristic of jy _ ca , it is to divide jy _ ca into ca initial module , certificate requisition module , certificate signature module , certificate revocation module , certificate inquiry module , privat key recovery module and management module . the realization of each module has been explained briefly at the same time 本文在介绍密码学知识的基础上，剖析了x . 509证书的证书结构，详尽阐述了pki的原理和各个组成部分的功能，并结合作者的项目开发，对jyca的运行环境和系统特点作了整体说明，把jyca划分为ca初始化模块、证书申请模块、证书签发模块、证书吊销模块、证书查询模块、密钥恢复模块及管理模块，同时对各个模块的实现要点作了扼要说明。
