请注意这两个图形集合之间的外观差异。
Notice the difference in the appearance between the two sets of figures.
相应的程序能有效地处理各种各样的图形，而图形集合的输入简便。
The program with underlying theory and algrithm canefficiently process various graphs. And the input of graphs is simple andconcient.
这个规范包括图形形状，含义描述和每个结构的属性集合。
The specification contains the graphical shapes, descriptions of the meaning and a set of properties for each construct.
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