Analyzing the sequence of the parameters by the power and cross spectra yields main periodic changes of quasi-two-week oscillation.
对三参数序列应用功率谱和交叉谱分析得出，其主要周期变化为准两周振荡。
Analyzing the sequence of the parameters by the power and cross spectra yields main periodic changes of quasi-two-week oscillation.
对三参数序列应用功率谱和交叉谱分析得出，其主要周期变化为准两周振荡。
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