纵波

With the algebraic result in form of piecewise function expressions, the excitation and propagation processes of stress waves, including the longitudinal wave, the transverse wave, and Rayleigh-wave, are discussed in detail.

基于该分段函数形式的代数结果，纵波、横波、Rayleigh波等应力波成分在弹性表面的激发和传播过程得到详尽分析，其中很多结论是已有的解析积分结果或者数值计算结果不曾得到的。

Based on this relationship, the v of the amphibolite obtained is 6.390 7 km/s, and the pressure coefficient is 0.160 6 km/.

依据该线性关系，得到常温常压下斜长角闪岩的弹性波纵波速度为6.390 7 km/s，压力系数为0.160 6 km/。

Based on the measurement results, the elastic modulus and the longitudinal wave velocity of diabase and argillaceous limestone are organized and regressed to calculate their correlation.

百色水利枢纽消力池的工程地质条件复杂，在施工详图设计阶段对其进行专门勘察时做了大量的钻孔变形参数测试和声波测试，利用钻孔变形参数测试和声波测试结果，对辉绿岩、泥质灰岩的弹性模量和纵波速度进行整理、回归，求出其相关性。

The average propagation velocity of the laser-induced shock wave in stainless steel was 5.72×10^3m/s.

激光冲击波在不锈钢材料中的平均传播速度为5.72×10^3m/s，与声波纵波的传播速度一致。

We can see the P wave amplitude and traveltime difference with the azimuth and incidence angle in numerical simulation.

在数值模拟中可以看到随观测方位和入射角变化的纵波振幅和旅行时的差异。

The gas content and permeability of coal can be researched by the technology of P-wave AVO and azimuthal AVO which based on the anisotropy theory.

煤层的含气性及渗透性可以利用纵波AVO技术及基于各向异性理论的方位AVO技术进行研究。

Thus it is shown there may be dissipative compressional wave and shead wave in viscous compressible fluid.

本文在小扰动条件下，从粘性可压缩流体的运动方程、状态方程以及连续性方程导出了它的波动方程，从而表明粘性可压缩流体中能够存在有耗损的纵波与横波。

Volcanic gas reservoirs of low permeability in the carboniferous of a basin are characterized by deep burial depth, complex genesis, many types, wide distribution and non-evident expressions in three-porosity log curves, as well as the variedvalues of density and compression wave of main four volcanic gas reservoirs (such as the basalt, andesite, dacite and rhyolite). So a number of effective methods based on three porosity log data cannot work in identifying the volcanic gas reservoirs of the carboniferous of the basin.

石炭系火山岩的低渗透气藏具有的埋藏深、成因复杂、类型多、分布广、三孔隙度曲线响应特征不明显等特点，并且主要的四种火山岩气藏：玄武岩、安山岩、英安岩、流纹岩的密度和纵波时差测井值差别较大，因此使基于三孔隙度测井资料的一系列识别气层的有效方法在该盆地石炭系火山岩气层的识别中无明显效果。

After deriving the equations of reflectance spectrum of compressional and shear waves for thin beds at an arbitrary incidence angle , the equations of reflectance spectrum of compressional wave for a thin bed are reduced at zero incidence angle .

该文在推导出任意入射角入射条件下的多个薄层纵、横波反射系数谱理论基础上，进一步简化出了单个薄层垂直入射时的纵波反射系数谱计算公式，从而获得了在薄层条件下不同频率成分的纵波反射系数谱数学关系式。

The nearsurface thicknesses, as seen by a P-wave and an S-wave, can be different. The watertable serves as a boundary for the P-wave near surface layer, but not necessarily so forS-wave which is unaffected by the pore fluid composition.

纵波和横波的近地表厚度不同，纵波的近地表层边界为潜水面，而横波不受孔隙流体影响，它的近地表层往往延伸到潜水面以下。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。