To solve the difficulty in modeling a chemical system a new node granularity transformation method based on object directed acyclic graph was proposed.
针对化工系统模型难以确定的问题，提出了基于对象的有向无环图节点粒度的转换方法。
By using the graph theory and the method of data transformation, a series of connectivity matrixes and loop matrixes are derived from the basic relation matrix-the matrix KL.
应用图论理论和数据转换方法，通过基本关系矩阵———KL矩阵派生一系列的衔接矩阵和回路矩阵。
Another characteristic of graph transformation is that pattern matching method can be used in the source models.
图形转换方法的另一个特性是能够在源模型元素中使用模式匹配的能力。
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