vns meaning in English

自主神经系统

Considering the demand of embedded system , this paper designs and realizes a map symbol base for vns specially
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。
As an important part of the vehicle navigation system ( vns for short ) , electronic map display is the foundation of the human - computer interface
电子地图的显示是车载导航系统的一个重要组成部分，是人机界面的基础。
On the other hand , the current popular map symbol base softwares do not meet the demand of the embedded vehicle navigation system . so it is necessary to build a special map symbol base system for vns
目前已有的通用型符号库软件不能满足嵌入式车辆导航系统的要求，因此需要自行研制一款地图符号库。