本文采用统一的方法分析直流直流变换器中的对偶电路，将电路的对偶分解为拓扑图的对偶和元件的对偶。
The unified approach is applied to analyze dual circuits in DC DC converters, i. e. , the duality of circuits is decomposed into the duality of topological graphs and the duality of elements.
小波分解形成了图像能量的聚集，这种聚集可以形成更多的零树，而MSR作为对对偶小波波形集中度的度量参数，同样也可以作为衡量零树编码效率的度量。
Wavelet decompose can made the energy of image get together to the low frequency, thus it can form more zero-trees and MSR as the measure of the efficiency of zero-trees coding.
小波分解形成了图像能量的聚集，这种聚集可以形成更多的零树，而MSR作为对对偶小波波形集中度的度量参数，同样也可以作为衡量零树编码效率的度量。
Wavelet decompose can made the energy of image get together to the low frequency, thus it can form more zero-trees and MSR as the measure of the efficiency of zero-trees coding.
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