利用互易电路支路阻抗矩阵对称性，构造回路阻抗矩阵也对称的回路电流方程，得出一种证明互易定理的直观方。
With symmetry of branch impedance matrix in reciprocity network the loop current equation that the loop impedance matrix is symmetrical is presented.
利用福克-普朗克方程的方法，讨论了RL回路中热涨落产生的电流效应，分析了噪声参数对电流定态几率分布函数的影响。
Using method of Fokker-Planck equation, effects of electrical current in RL circuit are discussed, and the effects of noise parameters on stationary probability distribution are analysed .
以回路电流法为基础，选定某一定子绕组为基准绕组，列写了用矩阵形式表示的、计算回路电流及支路电流的网络方程。
The network equations based on loop current method and expressed in matrix form are established, and the loop currents, then the brance currents, can be calculated by the equations.
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