在地震数据处理中，频谱分析是不可缺少的重要环节。
The analysis of frequency spectrum is an important link in seismic data processing.
通过多种特殊处理方法效果的分析，总结了一套较为有效的恶性井漏地震预测技术，如相干体分析、频谱分析等。
By the effect analysis of various special processing methods, a set of seismic prediction techniques of malignant leakage such as coherent analysis and frequency spectrum analysis are summarized.
经过数字滤波和频谱分析等技术， 由地震记录图中分离出了断层围陷波。
The fault zone trapped waves were separated from seismograms by numerical filtering and spectral analyzing.
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