The two basic modes of mathematical model-behavior mode and state variable mode, along with the isomorphic and homomorphic relation between models and real system are described.
系统数学模型的基本模式：行为模式和状态变量模式以及在状态变量模式下的同构与同态系统；
A method of identifying isomorphic hybrid switching topology based on mathematical model of hybrid branch is proposed.
并根据简单图的同构判定理论，提出了基于混合支路数学模型的同构混合开关拓扑辨识方法。
The authors proposed a method for reliability evaluation and re-evaluation of distribution network by dual isomorphic Bayesian network model.
作者提出了一种双同构贝叶斯网络模型的可靠性评价和重新评价的配电网络。
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