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PND(个人导航设备)是指结合了5英寸以下的液晶显示屏和用于保存地图数据的闪存,能够显示地图并指示道路的简易汽车导航系统。2004年,全球的PND出货量
The PND (Personal Navigation Device) refers to a simple car navigation system that can display a map and indicate a road by combining a liquid crystal display below 5 inches and a flash memory for storing map data. In 2004, the global PND shipments