This paper is to study the problem of Marine surveying and mapping database maintenance and improved technology.
本文主要是研究海洋测绘数据库的维护问题与其改进技术。
At last, the author prompts a scheme for surveying and mapping department to update relief map database with incremental mode.
最后提出了生产部门进行地形图数据库增量更新的方案。
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