universal relation expression 泛关系表达式
monotonic relation expression 单调关系表达式
relation expression of constraint 限制关系表达式
Relatively, the development of spatial analytical function of GIS is unsatisfactory. Meanwhile, the spatial target location, attribution expression and complex spatial relation expression between two targets put the foundation of spatial analyses.
但是,GIS中空间分析功能的发展显得比较落后,而空间分析是建立在空间目标位置和属性表达以及目标间复杂空间关系表达的基础上,要提高空间分析能力,必须解决空间关系描述与表达。
参考来源 - 空间拓扑关系表达方式间的转化与应用·2,447,543篇论文数据，部分数据来源于NoteExpress
Part two studies the relation expression of knowledge and establishes the relation ex pression and management of IDSS knowledge.
第二部分从知识的关系化表示入手，提出了IDSS知识的关系化表示与管理方法。
In the meantime, through a large quantity of cement concrete pavement stress calculation, the paper puts forward relation expression between load on concrete board and stress level under board;
同时，通过大量的水泥混凝土板底应力计算，推导出了混凝土面板荷载与板底应力水平的关系式；
This is the first time that this example is using a relation as a declarative statement to define an expression (in other words, a value assignment) instead of using it for model-to-model mapping.
这是本例子第一次把关联作为一个定义表达式(换句话说，一个赋值语句)的声明性陈述来使用，而不是用它作模型到模型的映射。
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