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1)  the Operation of Direction Relations
方向关系运算
2)  computation of directional relationship
方向关系计算
1.
There are many models for the computation of directional relationship between spatial objects,such as the famous cone_shaped model,project model and qualitative triangle model.
在对拓扑邻接凸多边形方向关系计算特殊性分析的基础上 ,提出了一个邻接凸多边形方向关系计算算法和二维空间方向关系推理方法。
3)  relational operation
关系运算
1.
To give a solution for the conventional managing software system of substation equipment that necessitates program modifications for different projects, a vieworiented data programming interface is presented and its dictionary data design, relational operation design, etc.
介绍了其字典类数据的设计、关系运算的设计、编程接口等内容。
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4)  computational relationship
运算关系
5)  relation operation
关系运算
1.
Based on CBD and from the point of the software evolvement,the conceptual and technical model of evolved component and the relative theories of relation operations between evolved component were proposed in this paper.
基于CBD,从软件演化的角度提出了演化构件的概念模型、技术模型以及演化构件关系运算的相关理论,建立了演化构件关系图到演化构件关系运算表达式的转换算法,为用代数理论研究构件的属性、行为特征以及软件演化提供了理论基础和依据。
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6)  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
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补充资料：方向
①指东、南、西、北等：在山里迷失了～。②正对的位置；前进的目标：军队朝渡口的～行进。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条