求无向图的生成树是在网络和回路分析中经常遇到的重要问题。
To enumerate all spanning trees in undirected graphs is an important problem that people frequently encounter in the analysis of network and cycle.
但是基本的回路分析法不能用于处理含有电流源支路的回路分析问题。
But fundamental loop analysis method can not be used for approaching the loop analysis problems of the loop containing current source branch.
本文引用系统主回路分析的新方法—回路增益弹性法对大信号下反馈放大电路的行为特性进行讨论，并通过分析一个二阶反馈放大电路给出一般分析方法和步骤。
In this paper, A new method of system main loop analysis is quoted to analyse the behaviour characteristic of feedback amplifier with large signal, A ordinary analysis method and steps are given.
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