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“數字城鎮”建設中應把數據信息維護、運轉和更新予以充分重眡。
By using 1:500 topographic map updating 1:2000 topographic through generalization of automatic cartography, decrease the burden of UBGIS data revision.
通過地圖自動縮編利用1：500地形圖更新1：2000地形圖，減少城市基礎地理信息系統的更新負擔。
This paper discusses the necessity of data revision of Digital Town. The main types of data revision and application technical ways are brought up.
本文論述數字城鎮的數據更新的必要性，提出數據更新的主要類型和採用的技術途逕。

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