城市地理信息的英文

• urban geographic information

• 城市:    city; town; abad; conurbatio ...
• 地理:    geographical features of a p ...
• 信息:    information; message; news
• 城市地理信息系统:    ugis; urban geographic information system
• 城市地理信息系统基础数据平台:    the basic data platform of shanghai’s urban geographic information system

例句与用法

1. This paper analyses data type and character , then defines a simply , practicable dtd - c - xml . dtd
   本论文分析了城市地理信息的数据类型及特点，定义了一个简单、实用的dtd文档? ? c - xml dtd 。
2. The kinds of ugis data are abundant , and it contains a lot of things . the ugis data has relative to many fields of the city . how to organize , store and query data effectively are very important to the efficiency of the whole ugis
   城市地理信息数据种类繁多，内容丰富，涉及诸多领域，如何将它们有机地进行组织，有效地进行存贮、管理、检索和应用，将直接关系到整个城市地理信息系统的应用效率。
3. The paper would make a study of construction data frame of large - scale ugis in order to make a sound theoretical ground of the construction of digital city . in the paper , the author brought forward firstly of scheme of topologic coding on ugis classification and coding based on streets and administrative districts according to the existing national standards of ugis classification and coding and corresponding digital city " methods of classification and coding
   在参照国家现有的城市地理信息分类与编码标准和相应的数字城市分类与编码方案的基础上，针对大比例尺城市地理信息系统对城市地理信息分类与编码的要求，作者首创性的提出了绑定式的城市地理信息分类体系与拓扑编码方案。
4. In the scheme , ugis classification and coding are divided into three steps : administrative districts are firstly classified and coded , and then street and road with the corresponding code of administrative district added , at last add the code of both the corresponding administrative district and street or road into the code of other corresponding geo - information . this method can reflect topologic relationship between objects , make a fast query and shorten the length of codes
   这种绑定式的城市地理信息拓扑编码的好处是：在编码中既体现了城市地理信息之间在空间上的拓扑关系，又提高了整个系统查询和检索的速度；按行政区划和城市街道进行城市地理信息的分类与编码，代码结构清晰易懂，而且可以大大缩短编码的长度。
5. In view of the problems that the techniques and methods are simple and fall behind and we lack efficient data updated system and methods and so on in data updating of geographic information system , a contrastive analysis is applied to expound some problems such as data source , updating model , and data safety and so on so as to update the urban geographical information system
   摘要针对城市地理信息系统数据更新中存在的技术单一落后、缺乏有效的数据更新机制等问题，从城市地理信息更新的需要出发，采用对比分析与系统设计的方法，阐述了城市地理信息系统数据更新的数据源、更新模式与数据安全性等问题，给出了不同情况下的更新策略。