方向关系是一类重要的空间关系，它在空间数据建模、空间查询、空间分析、空间推理等过程中起着重要的作用。
Direction is a kind of important spatial relationship, it plays an important role in the process of spatial modeling, spatial query, spatial analyzing and spatial reasoning.
该算法按照空间相邻关系，将空间相邻的空间目标聚类成一类。
The algorithm clusters neighboring spatial objects to a cluster on the neighborhood relation in spatial.
其中基础类包是应用类包和组合类包的基础，它用点、线、面、体、复杂对象和关系类等基本的要素表示三维空间。
The base package including point class, line class, area class, volume class, complex object class and relation class, is the base of the application package and the combination package.
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.
依据系统动量守恒关系和拉格朗日第二类方程，推导了漂浮基双臂空间机器人系统的动力学方程。
According to the momentum conservation law, the dynamic equations of dual-arm space robot system were established through Lagrange equation of the second kind.
课题分两类：一为日常用品归类，二为数量及其空间关系。
There are two types of subjects in this research: (1) the classification of daily-use articles and (2) numbers, quantities and space relationships.
据此，本文尝试提出一种简单的加入空间关系的遥感图像分类方法，即，先准确识别出海水类，然后统计非海水类的每一个像元到最近海水的空间距离。
The coastal zone is close to ocean water which can be recognized easily by its significant spectral difference from land objects in the remotely sensed images.
引入幂塑映射概念，利用序关系讨论了幂塑映射的性质，并给出了一类空间点在幂变换下的一些结果。
The properties of the plastic of power of simplex are established, which are generalizations and improvement of some related results in article 1.
引入幂塑映射概念，利用序关系讨论了幂塑映射的性质，并给出了一类空间点在幂变换下的一些结果。
The properties of the plastic of power of simplex are established, which are generalizations and improvement of some related results in article 1.
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