爆炸震源的地震纵波是脉冲性质的。周期振动是地震脉冲引起的次生振动。
A primary seismic wave from an explosive source is a pulse response, and its periodic vibration originates from seismic pulses.
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.
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.
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.
纵波的衰减系数在地震频带内基本上呈线性变化，而横波的衰减系数在地震频带内除低频外基本保持稳定。
The attenuation factor of longitudinal wave was changing linearly, whereas the attenuation factor of the slow shear wave kept nearly constant with a low frequency on the exploration seismic band.
分析结果表明，对于井中激发的地震资料而言，共检波点道集上纵波同相轴的连续性优于共炮点道集上纵波同相轴的连续性。
The analysis also shows that the continuity of P-wave event on common receiver gather is superior to that on common shot gather for seismic data acquired by shooting in shot hole.
利用地震波传播的互换原理，将算法推广到用于计算反射纵波和反射转换横波的旅行时。
With the use of reciprocal principle in seismic wave propagation, the algorithm may be used to compute the travel times of reflected compressional wave or converted shear wave.
对微地震波的传播进行了理论分析和数值计算，得到了存在衰减的粘弹性介质中纵波的传播规律。
By theoretical analysis and numerical computation of MS wave's propagation, the propagation law of wave in attenuation elastic-viscosity media had been given.
地震勘探主要研究一次纵波。
Seismic surveying is largely concerned with the primary P waves.
我国海上油气勘探长期存在着用纵波地震勘探难以解决的地震模糊带和岩性假亮点等问题。
For the offshore petroleum exploration in China, it has long existed that the fuzzy zones and lithological false bright spots can't be eliminated by the P_wave seismic exploration.
这是因为地震波从地内向地面传来，纵波首先到达的缘故。
This is because the seismic waves from the ground came to the ground, vertical landing because of the first wave.
这是因为地震波从地内向地面传来，纵波首先到达的缘故。
This is because the seismic waves from the ground came to the ground, vertical landing because of the first wave.
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