Geographic information is the main contents of cartographic communication and the inner thread of cartographic communication system.
地理信息是地图信息传递的主要内容，也是地图信息传递系统的内在联系。
User interface in cartographic visualization system performs information interaction between user and the system.
地图可视化系统用户界面是地图可视化系统和用户进行信息交互的接口。
User interface in cartographic visualization system performs information interaction between user and the system.
地图可视化系统用户界面是地图可视化系统和用户进行信息交互的接口。
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