本文初次与大家见面并在征求大家意见过程中,发现由于本文在某些方面交待得不清楚,引起了一些问题,需要加以补充说明,有些问题是属于看法不一致,可以进一步由今后大家的实践来纠正我们的错误或完善我们的提法。关于记录上的“尾巴”问题和断点波形问题不少同志提出,记录上绕射“尾巴”不容易找到,因而怀疑物理地震学在实际工作中的 This article for the first time to meet with you and seek the views of everyone in the process, found that as some confusion in this article in some areas, causing some problems that need to be added that some of the issues belong to inconsistent views that can be further from the practice of everyone Correct our mistakes or improve our formulation. On the record of the “tail” problem and breakpoint waveform Many comrades suggested that diffraction on the record “tail” is not easy to find, and therefore suspect that physical seismology in the actual work of