Problem representation is a process of circle which involves a factor of insight.
问题表征是一个循环深入的过程，基中伴有顿悟的因素。
A method of signal time-frequency representation with phase factor is introduced.
描述了一种带相位因子的时频分析方法。
A method of signal time-frequency representation with phase factor is introduced.
描述了一种带相位因子的时频分析方法。
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