This paper compared the navigable data with general geographic information data in data model, accuracy and structure, etc.
本文对导航数据与一般的地理信息数据在数据模型、数据的准确性、数据的组织方法等方面进行了比较。
The research on massive-scale geographic data was carried on for a long time. But general formation data has not been studied carefully.
国内外对海量地形数据的研究比较深入，但对具有一般意义的海量地层数据研究较少。
The research on massive-scale geographic data was carried on for a long time. But general formation data has not been studied carefully.
国内外对海量地形数据的研究比较深入，但对具有一般意义的海量地层数据研究较少。
应用推荐