Seismic surveying is largely concerned with the primary P waves.
地震勘探主要研究一次纵波。
And research found that P waves travel through both liquids and solids, while s waves only travel solid matter.
研究发现P波可以同时穿过液体和固体，而S波只穿过固体物质。
And researchers found that P waves travel through both liquids and solids while s waves travel only through solid matter.
研究者发现P波可以同时穿过液体和固体，但是S波只能穿透固体。
And researches found that P waves traveled through both liquids and solids while s waves traveled only through solid matter.
研究发现P波能在液体和固体中传播，然而S波只能在固体介质中传播。
It is shown that so long as the restrained gas exists, there are two P waves and one S wave, even though the fluid phase is incompressible.
结果表明，甚至当液相为不可压缩时，由于束缚空气的存在，饱水土体中亦存在着两种P波。
The numerical calculation shows that the restrained gas will reduce the velocity of P waves and increase the damping constants corresponding to P …
数值算例指出，束缚空气的存在将使P波速度降低而使其相应的阻尼常数增大，但对S波却无影响。
Because P and S waves travel at different but fairly constant speeds, the interval between their arrivals increases in proportion to the distance from the earthquake focus, or initial rupture point.
由于P波和S 波以不同但相当恒定的速度传播，它们到达的间隔与到震源或初始破裂点的距离成比例地增加。
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.
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。
Secondary waves travel more slowly and arrive after the P-waves.
次要波传播的更慢，发生在P波之后。
Earthquakes begin with tremors called P-waves that have short wavelengths and generally do little damage; they may not even be felt by humans.
地震从称为P -波的震动开始，P -波波长短，一般很少损害；人们甚至感觉不到。
Both numerical calculations and supersonic physical model experiments are used in the study of P-SV waves in dipping viscoelastic layer.
本文用数值计算和超声物理模型实验两种方法研究倾斜粘弹性覆盖层中P -SV波的传播。
The explicit finite element is used to simulate the seismic response of an inclined fault step subjected to obliquely incident P and SV waves.
应用显式有限元法对倾斜断层台阶在地震体波斜入射下的地震反应进行了数值模拟。
Using MTS Ultrasonic Measurement System, we studied the influences of water of saturation and pore pressure on velocities of compressional (P) and shear (S) waves in exposure rock specimens.
我们用MTS的超声波测试系统研究了地表岩样饱和水及孔隙压力对纵横波速度的影响。
The static correction method of converted P-SV waves is always a problem in converted wave processing.
P - SV转换波静校正一直是转换波处理中的一个难题。
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。
The transition matrix method is extended to study the scattering problem of P, SV waves in half-space with two-dimensional local surface or subsurface irregularity.
本文将转换矩阵法加以推广，用来求解半空间表面局部不规则区域所引起的P、SV波的散射透射问题。
Using the second-order potential theory proposed by the author, this paper gives an investigation to the nonlinear interaction of P and SV waves in isotropic elastic media.
应用作者提出的二阶势理论，本文研究了各向同性弹性介质中P波与SV波的非线性相互作用，得到了相互作用波的表达式。
Both P and S waves refract or reflect at points where layers of differing physical properties meet.
和S波都在具有不同物理性质的地层相遇处折射或者反射。
The detection of Pre-P wave was affected by the heart rate, respiratory, artefact and low frequency waves.
前波的表达受心率、呼吸、伪差及低频波等因素干扰。
The dynamic stiffness matrix of the media and the formula of their response to P-SV waves are derived.
利用土层和半空间的精确动力刚度矩阵，在频域内求解并分析了弹性半空间场地对P波的放大效应。
This paper proposed to overcome the shielding effects by using wide-angle P-wave reflections and localized converted waves (PSPPSP).
提出了采用P波广角反射和P波高速层内局部转换广角反射波消除火成岩高速层对地震波的屏蔽作用。
The other two, Primary (P) or compression waves and Secondary (S) or shear waves, penetrate the interior of the Earth.
另外两种，P或者“压缩波”以及S“剧烈波”，穿透地球内部。
But, the converted waves, PS waves, containing effective information of incident compressed (p) waves, can create converted s waves.
转换波(ps)含有有效入射P波信息，从中能获得转换S波。
Given the velocity ratio of S-to P-waves, the depth of reflector and the offset, the horizontal distance between source and the converting point can be determined by solving a quartic equation.
如果我们已知介质中横波与纵波速度的比值、水平界面的埋藏深度和炮检距，炮点到共转换点的水平距离就可以通过解一个四次方程求出。
Random transform has been widely used in seismic exploration, for example, suppression of multiple, separation of P- and S-waves, seismic migration and inversion etc.
拉冬变换在地震勘探领域有广泛的应用，如压制多次波、纵横波分离、地震偏移及反演等。
Previous studies show that both dynamite borehole shots and vertical vibrations from controllable seismic sources at the surface will produce relatively strong pure P-waves and weaker pure S-waves.
已有的研究表明，炸药震源在井下激发、可控震源在地面垂向振动，均会产生较强的纯纵波和一定强度的纯横波；泊松比差别较大的分界面有利于形成较强的透射转换横波。
The performance on the raw two-dimensional P-SVwave data shows that the method can predict the long wavelength trend in P-SV waveS-statics.
通过实际二维P-SV波资料试验，表明本文方法可预测P-SV波横波静校正量的长波长趋势。
The foregoing analysis can of course be reiterated in the case of P-ank SV-waves.
在P波和SV波的情况下，前面的分析当然可以重复进行。
The foregoing analysis can of course be reiterated in the case of P-ank SV-waves.
在P波和SV波的情况下，前面的分析当然可以重复进行。
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