The method of earthquake prediction by means of amplituderelation anomalies is suggested, it is analogous to that by means of velocity anomalies.
采用与研究波速异常完全类似的方法，提出了利用振幅比异常预报较大地震的一些初步途径。
2
The theoretical analysis of normal variations of the 8 and P amplituderelation is given. The possibility and limitation for the use of the amplituderelation in earthquake prediction are discussed.
本文对波振幅比的正常变化作了理论分析，讨论了利用波振幅比变化预报地震的可能性及其应用范围。
3
The relation of screen capacity to the frequency and amplitude of vibration plays an important role in shale shaker design.