A differential transform method is introduced to solve nonlinear differential equations and extended as a generalized differential transform method.
引入求解非线性微分方程的微分变换法，将其推广为广义微分变换法。
By using the method of wavelet packet transform on the big differential currents, extracting high-frequency coefficients of wavelet packet, to decide faults within or outside the buses.
该方法应用小波包对大差电流进行变换，提取高频小波包系数来判定区内或区外故障。
Finally, the two level differential corrections method was proposed to transform the orbit designed under the circular restricted three-body problem model into the perturbed three-body problem model.
最后使用两层微分修正方法将圆型限制性三体问题模型下设计的轨道转换到受摄三体问题模型下。
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