substitution theorem

Then, a new approach for fault diagnosis using fault-prediction technique, substitution theorem, superposition theorem and branch tearing method is suggested and the parallel processing technique is discussed.

然后将故障预测技术、替代理论和迭加定理运用到支路撕裂法中，得到一个新的故障诊断方程，并给出了一种新的算法。

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In accordance with superposition theorem and substitution theorem, the symmetric three-phase and asymmetric three-phase arc furnace electric power system is reduced as a one phase system.

从替代定理和叠加原理出发，将三相对称及不对称电弧炉系统简化为单相系统进行求解。

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