本文分析了车载电子地图系统的组成和基本功能；
The component parts and main functions of the electronic map system of automobile navigation are analyzed in this paper .
地图符号库系统是电子地图系统中不可缺少的功能模块之一。
The Map Symbol base System is one of the indispensable base functions in Electronic Map System.
目前在国内的很多的大型城市已经相继的研制开发了城市电子地图系统，城市之窗，公众信息查询系统等。
Now, in our country, many large cities have developed city electric map system, for instance, Cities Windows, Common Information Query System, etc.
应用推荐