地理空间数据不确定性理论和方法的研究是当前GIS学科研究的热点和前沿领域之一。
Theories and methods of geospatial special data uncertainty nowadays is one of the most important researching fields in GIS.
GIS空间数据不确定性和质量控制的研究是GIS基础理论问题研究中的一个重要内容。
The researching of uncertainty and quality control of spatial data is considered as an important basic theory in GIS.
空间数据的不确定性是当前GIS领域的研究难点之一。
Uncertainty of spatial data is one of the current research issues in GIS domain.
因此，空间数据的质量，尤其是空间数据的不确定性变得越来越重要。
Hence, the quality of GIS spatial data, especially the uncertainty of spatial data, is becoming more and more important.
因此，空间数据的质量，尤其是空间数据的不确定性变得越来越重要。
Hence, the quality of GIS spatial data, especially the uncertainty of spatial data, is becoming more and more important.
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