对于具有相同属性和相似结构的规则组，以表格形式表示它们比较方便。
For groups of rules that share a set of common attributes and have similar structure, it can be convenient to maintain in a tabular form.
这些特殊计算与那些是相似被使用在重覆叠盖的几何图形：交叉点被计算，点和连接被形成，拓扑结构建立，并且更新属性表格。
These particular computations are similar to those used in polygon overlay: intersections are computed, nodes and links are formed, topology is established, and attribute tables are updated.
提出了产品结构属性相似度与客户需求结构属性相似度的相对相似度计算方法。
The computation method for the relative similarity of the attribute similarity of product structure and of the attribute similarity of customer's requirements structure has been put forward.
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