查询词典 gis

Analyzes the basic features of a special GIS applications and its basic demand, points out the localization of integrated GIS platforms and its inelasticity, and presents a spatial data model based on constructed point set storage to satisfy with the demand of the special GIS application.

分析了一类特殊GIS应用的基本特点和基本功能需求，指出了现有GIS平台的局限性和对该类应用的不适应性，针对该类特殊的GIS应用，创造性地提出了能满足其要求的基于构造点集的全关系型空间数据模型。

This article first penetrates with studies of system structure,realization technology and relevance knowledge of Web GIS, afteranalyzing several major domestic and foreign Web GIS platform,proposes the solution to spatial resources information publishing systembased on ArcGIS Server; Then through the independent research anddevelopment of "rare character retrieval software", solves the rarecharacter and the GB character integrated input and the rare characterdistribution question; United the function of renewal project informationmanagement publishing system, proposes the system solution, as well asreasonable database structure; Finally, through developing the spatialresources information publishing system, the on-line documentmanagement system and the renewal project information network,organizing and the managing renewal information according to the region,realizes scientific style and the automated management for each kind ofinformation, and provides method of information inquiry and analysisbased on the network and the GIS technology.

首先，深入研究网络GIS的体系结构、实现技术及相关知识，通过分析比较国内外几种主要网络GIS平台之后，提出基于ArcGIS Server的空间资源信息发布系统解决方案；然后通过自主研发"生僻字检索工具软件"，解决生僻字与国标字的一体化录入以及生僻字的分发应用问题；结合更新项目管理信息发布系统功能，分析提出本系统的总体设计，以及数据库的合理结构；最后，通过空间资源信息发布系统、在线文件管理系统和更新项目信息网三个模块的开发，按地域来组织和管理更新信息，并提供基于网络和GIS技术的信息查询和分析手段，实现各类信息的科学化和自动化管理。

An online monitoring system of partial discharge in GIS based on ultra high frequency method is introduced in this paper,it can be real-time monitoring the discharge of fixed particles, unbound particles, floating electrode and insulation defects, accurately reflecting the state of 1000kV GIS.

介绍一种基于UHF方法的GIS局放在线监测系统，可以实现对1000kV GIS内部固定粒子、自由粒子、浮动电极及绝缘缺陷放电情况的实时监测，准确反映1000kV GIS的状态，给1000kV GIS的运行维护工作带来很大帮助。

The principle of partial discharge detection of gas insulation switchgear with ultra high frequency is discussed.A 220 kV GIS bus bar cavity is adopted as a test object to design and simulate four typical defect models in GIS.The PD signals produced by the four models are obtained via the PD detection system,which is developed by the authors on the basis of the narrow band UHF method.

为了提高GIS运行的可靠性，笔者简要说明了超高频法检测GIS局部放电的原理，并在实验室以一段220 kV电压等级的GIS母线为试验对象，设计和模拟了GIS中典型的4种局部放电模型，并使用自主研发的超高频窄带检测系统对其局部放电信号进行检测。

The paper use GIS vector graph component in an actual small GIS, which are provided with basic GIS functions. It prepares the matter for the following expansion and upgrade.

本文将GIS矢量图形组件应用在实际的小型GIS系统中，使系统具备最基本的GIS功能，为后续的扩展和升级作好铺垫。

GIS network path analysis is the hotspot of GIS research,while the shortest path is the most basic and the most pivotal problem,so the research on it was never interrupted.Based on the Dijkstra algorithm combined with the GIS its own chrematistics,a lot of improvement has been adopted compared with the traditional Dijkstra algorithm.

GIS网络剖析是GIS的研讨暖点和难点，而最短路径题目是GIS网络剖析中最基本和最关键的题目，海内外大量专家学者对最短路径题目入行过深入研讨，提出了多种解决最短路径题目的算法。

According to the characteristic of the urban commercial resources and its impact for the development of commerce and cities, the GIS-based resource management system for the urban commerce is researched and designed. The system frame includes not only the design of system's constructer and functions, but also the research of relevant criteria for urban commercial resources, and the design of application and service for the system. It is innovation at both the use of GIS and commercial circulation modern that focus the combination of GIS's use and promote the commercial management.

针对城市商业资源的特点和对城市发展的影响，给出了一个基于GIS的城市商业资源管理系统的设计框架，能够为城市商业流通的发展提供一个很好的信息服务和决策支持平台，系统的研究设计不仅包括内部结构及功能，同时还包括相应的商业资源管理标准系列的研究，以及系统的应用设计和服务体系设计，集中在解决提高行业管理现代化水平与GIS技术应用的结合上，是GIS在领域应用和迅速提高城市商业流通现代化水平的一个创新性探索。

Based on the deep analysis of technical characteristics and development situation of AM/FM/GIS, the author points out the defects in the construction of AM/FM/GIS application, such as repeated construction, low reuse ability, and summarizes the entitative character of AM/FM/GIS.

论文在对AM/FM/GIS技术特点、发展现状进行深入分析的基础上，指出当前AM/FM/GIS应用系统建设过程中软件重复性建设等的众多弊端，总结和归纳了AM/FM/GIS的本质特征。

This paper deals with the surge protection of a 220kV H—GIS and analyzes the effects of metal oxide surge attesters on reducing the incoming lightning overvolrages by means of numercal method Meanwhile, there is a kind of over-voltagey which may be rather critical for GIS, e·g·the switching surges with extremely high frequeuly produces by GIS-G switching-off of some loadless duses.

本文讨论220kV混合式GIS变电站过电压保护，用数值计算方法分析氧化锌避雷器对降低过电压的作用，并讨论了有一种类型的过电压可能对GIS要求更为严格，即在主回路中用GIS隔离开关切除空母线引起某些高频操作过电压，因此在绝缘配合时要相应考虑。

This dissertation provides a rigorous definition of Internet GIS based on analyzing lots of the latest theories and applications and thoroughly researching in the properties and problems of Internet GIS. The conception of Internet GIS including literal and mathematical description defines its computing model, application model and the relationship among software inscapes which are operation, data and flow, and so lays a solid foundation for theory research.

本文在分析了大量应用的基础上，综合当前计算机发展的最新动态，对于Internet GIS的特点和需要解决的问题作了深入和详细的研究，建立了Internet GIS的严格的定义，包括文字和数学描述，确定了其计算模型和应用模型以及软件构成三元组，即空间操作、空间数据、流动关系，以及它们之间的数学关系，为Internet GIS的理论研究奠定了基础。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。