空间数据精度国家标准 NSSDA
减轻了图表预处理和编辑的工作量，使空间数据精度提高。
Workload of map and table pretreatment and edition was mitigated on large scale, spatial data precision was increase.
GIS空间数据精度与质量直接影响一个国家GIS应用的广度与深度。
The GIS space data accuracy and quality can directly affect a national GIS application more intensively and extensively.
空间数据的精度分析和质量控制是地理信息科学研究的主要内容之一。
The precision analysis and quality control of spatial data is one of the main contents of the research on geographic information science.
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