初步解释了强震前兆次声波的产生机理和传播机制。
The generating and propagating mechanism of the precursory infrasound of earthquake are primarily explained.
通过对频谱图进行研究、分析、获取次声波的相关信息，从而对地质灾害进行监测与预警。
Through the analysis and research on the spectrum diagram, the related information of device were accessed, thus to monitor and warn the geological hazards.
提出的孕震体膨胀-收缩模型的确能在空气中产生次声波，且次声波的主要频率是孕震体膨胀-收缩周期的倒数；
The results showed that the proposed model could produce infrasound which frequency agrees well with the observed and it might be a true mechanism of infrasound abnormality formation.
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