So, positional uncertainty theory research of linear entity counts for much for GIS positional uncertainty theory research.
因此，在GIS位置不确定性理论研究中，线状实体的位置不确定性理论关系重大。
In the domain of GIS uncertainty research, positional uncertainty and attribute uncertainty are of the major research objects.
在GIS不确定性理论研究领域中，位置不确定性和属性不确定性是主要的研究对象。
The graphical representation of positional uncertainty provides the assessment of the quality of positional data with a visual means.
位置不确定性的图形描述为评价位置观测数据的质量提供了可视化的方法。
The measurement and state estimation of targets involves kinematics and attribute data, in which positional uncertainty is of the most important performance.
目标的观测和状态估计涉及目标的各种运动和属性数据，其中位置不确定性是最重要的性能指标。
The measurement and state estimation of targets involves kinematics and attribute data, in which positional uncertainty is of the most important performance.
目标的观测和状态估计涉及目标的各种运动和属性数据，其中位置不确定性是最重要的性能指标。
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