The content graph metadata gives description in three aspects: title, organization information and geometric reference.
内容图形从标题、组织信息和几何参照三个方面进行描述。
After tracing and analyzing the geometric structure of control system block diagram, thereby the corresponding topological structure is generated by graph analyzer.
图形分析器通过对控制系统方框图的几何结构进行跟踪探索和结构分析，生成相应的拓扑结构。
When graphs are decomposed, the system deduces productive rules and decomposing operations to , be used from geometric properties of the graph so that better graph decomposition can be obtained.
图形分解时，系统根据当前图形的几何特性，推断出要应用的产生式规则和对图形要施加的分解操作，因此可以得到一个较好的图形分解。
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