纵波 laengswelle ; S-P interval ; Longitudining waudio-videoe ; compress wave
纵波探头 longitudinal wave probe
纵波衰减 COMP ATTN ; attenuation of p-wave ; P-wave attenuation
纵波幅度 COMP AMP ; P-wave amplitude
纵波分量 compressional component
纵波频率 longitudinal frequency
平均纵波能量 ACE
横波-纵波转换 shear-to-compressional conversion
连环追纵波 D
P波有时被看作纵波，因为它们以更快的传递速度穿越地球内部，因此最先被地震监测站台发现。
P-waves are sometimes known as primary waves, because they travel faster through the Earth and so are the first to arrive at monitoring stations.
快纵波的相速度随频率的增大以指数形式减小。
And the phase velocity of fast wave will decrease exponentially with frequency.
地震所引起的地面振动是一种复杂的运动，它是由纵波和横波共同作用的结果。
Caused by the earthquake ground vibration is a complex exercise, it is by the P-wave and S-wave interaction results.
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