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1)  qualitative directional relationship
定性方向关系
2)  qualitative direction relation reasoning
方向关系定性推理
1.
Laws of qualitative direction relation reasoning between direction relations are the improvement of studying qualitative seasoning between single direction relations.
3D-GIS中单方向关系间定性推理共有27×27=729结果,方向关系定性推理的规律性研究是研究单方向关系定性推理的提升。
3)  Qualitative relation equations
定性关系方程
4)  direction relation
方向关系
1.
Qualitative direction relation reasoning in 3-dimensional GIS;
3D-GIS中方向关系定性推理研究
2.
The Reasoning of Spatial direction relation based on Search;
基于搜索的空间方向关系推理
3.
Qualitative direction relation reasoning laws in 3D-GIS
3D-GIS中方向关系定性推理规律研究
5)  direction relationship
方向关系
1.
The description in 2D space between fuzzy regions 9-intersection model is founded,at last,the combinational reasoning ways are proposed based on spatial direction relationships and spatial topological relations.
本文首先讨论了模糊区域的定义和边界问题,然后把描述确定性区域的9交模型引入到模糊区域,建立了二维空间中描述模糊区域之间的9交模型,最后提出了基于空间方向关系和空间拓扑关系的组合推理方法。
2.
The description in 2D space between fuzzy regions 9-intersection model was founded,in the end,the combinational reasoning ways was proposed based on spatial direction relationships and spatial topological relations.
本文首先讨论了模糊区域的边界问题,然后把Egenhofer等描述确定性区域的9交模型引入到模糊区域,建立了二维空间中描述模糊区域之间的9交模型,最后提出了基于空间方向关系和空间拓扑关系的组合推理方法。
6)  directional relation
方向关系
1.
Modeling directional relations of spatial objects and its applications in GIS.;
空间方向关系描述模型及其GIS应用分析
2.
Research on spatial directional relation description model;
GIS空间方向关系形式化描述模型分析
3.
The directional relationship is one of the key theoretical issues in GIS.
方向关系是GIS中的一个重要的理论问题。
补充资料:经济关系(见生产关系)


经济关系(见生产关系)
economical relation

  1 ingji gU口nxj经济关系(eeonomieal relation)系。见生产关
  
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