The main analytical method of unsteady flow in pipelines includes frequency domain analysis and time domain analysis.
管道中非稳定流动的分析方法主要有频域法和时域法。
Fourier transformation in time domain and frequency domain is one of the main methods for modern railway signal detection.
时域分析和傅氏变换的频域分析方法是现代铁路信号检测的主要方法之一。
This method of separating the waveform in time domain into its main elements helps to find out what part of the spectrum in frequency domain caused by what related physical phenomena.
这种在时域里对主要原理进行拆分的方法有助于找出产生电磁干扰频段的干扰源。
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