Progress has been made in the models of directional relations between spatial objects.
空间对象的方向关系模型的研究已经取得了一定的进展。
This relationship between the subjective and objective is a bi-directional and dynamic relations.
这种存在于音乐审美主客体之间的是一种双向的、动态的价值关系。
A discussion of the relations between continuity, partial derivative, directional derivative and differentiability of binary function is helpful for us to study binary function.
探讨二元函数的连续性、偏导数、方向导数以及可微性之间的关系，有助于我们对二元函数的学习。
Spatial relations are categorized into three types of relations, namely topological, directional and distance relations.
在该方法中，首先将空间关系分类为拓扑关系、方向关系和距离关系。
Spatial directional relation is one of the basic spatial constraints which represent geometric distribution relations of spatial objects.
空间方向关系是一类描述空间目标间位置分布的基本空间约束。
Spatial directional relation is one of the basic spatial constraints which represent geometric distribution relations of spatial objects.
空间方向关系是一类描述空间目标间位置分布的基本空间约束。
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