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前言在利用序列特性预报大震的研究中,大家很关心、进行得非常广泛而又说法很不统一的一个问题,是震前小震活动特性的问题。影响序列活动特性的实验研究工作,茂木清夫认为序列活动程度极大地依赖于岩石构造的不均匀程度;维诺格拉多夫认为同一种材料,不同的应变速率下产生的声发射序列是极不相同的。作者的实验考察了岩石
Preface In the research of using the characteristics of sequence to predict large earthquakes, we are very concerned about it. The one that is widely used and the argument is very inconsistent is a question about the characteristics of small earthquakes before earthquakes. As a result of experimental research on the characteristics of sequence activity, Maugham said that the degree of sequence activity depends greatly on the heterogeneity of rock structure. In the same material, Vinogradov considers that the acoustic emission sequences generated at different strain rates are very different of. The author’s experiment examined the rock