data revision

基本解释

It is pointed out that attention must be paid to information maintenance, operation and data revision.
指出在“数字城镇”建设中应把数据信息维护、运转和更新予以充分重视。
By using 1:500 topographic map updating 1:2000 topographic through generalization of automatic cartography, decrease the burden of UBGIS data revision.
通过地图自动缩编利用1：500地形图更新1：2000地形图，减少城市基础地理信息系统的更新负担。
This paper discusses the necessity of data revision of Digital Town. The main types of data revision and application technical ways are brought up.
本文论述数字城镇的数据更新的必要性，提出数据更新的主要类型和采用的技术途径。

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