The Map Symbol Base System is one of the indispensable base functions in Electronic Map System.

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.

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To both printed paper map and electronic map, map symbol library is an important part.

无论是纸质地图还是电子地图, 地图符号库均是它们的重要组成部分.

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So it is necessary to build a special Map Symbol Base system for VNS.

结合嵌入式系统的要求,设计并实现了适合嵌入式车辆导航系统的地图符号库.

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