纵波

Gas hydrate and free gas ; Saturation ; Compressional wave velocity ; Quality factor

天然气水合物和游离气；饱和度；纵波速度；品质因子

The compressional wave velocities and electrical conductivity in some crustal rocks collected from Tibet Plateau are measured under the conditions of high temperature and high pressure.

在高温高压条件下研究了地壳岩石的纵波速度和电导率变化特征。

In this paper,by numerical calculation, the effect of gas saturation on dispersion of model waves,excited spectrum of compressional wave and shear wave and full wave of acoustic logs in cased boreholl are discussed.

通过数值计算讨论了气体饱和度对声测井曲线的模式波的频散特性、纵波和横波的激发特性、全波波形的影响。

Comprehensive utilization of super p-wave and infrared, magnetic oscillation, low-frequency waves of fitness function, big body apparatus can effectively decomposing and combustion of back, arm, lumbar abdomen and the thigh of fat, and strengthen the five parts of skeletal muscle to achieve the goal of thin body sustenance, With the professional body waves can deduce grease, will be structured to soften the instrument on chest and coxal adipose, Wave of professional model may be free fatty bandage fixing on the chest and women hips.

综合利用超纵波、红外线、磁振荡、低周波四大塑身功能，波的塑身仪能有效分解并燃烧背部、上手臂、腰腹部及大腿部位的脂肪，并强化上述五大部位骨骼肌的支撑力以达到瘦身的目的；配合波的塑身仪的专业推脂手法，能将被塑身仪软化的脂肪向胸部及臀部集中；LASTAR PARTUM专业塑型绷带则可将游离脂肪固定于女性的胸部及臀部。

We detailedly analyse the low-frequency radiative energies of the elastic waves which are generated by different axially symmetric sources in fluid — filled boreholes, and formulize the energies of tube,compressional and shear waves.

本文详细研究了充流体井中由不同类型轴对称震源激发的弹性波的低频辐射能量，导出了管波、纵波和横波能量的解析解表达式。

In fractural physical model experiment, after the analysis of the reflected P wave varying with observed azimuth at a certain offset in the simulated fractured media, we get the traveltime difference varying with observed azimuth. Also we can infer the azimuthal NMO velocity difference in fractured media.

在裂缝物理模型实验中，通过对模拟的平行排列的垂直裂缝介质中反射纵波的固定偏移距随观测方位变化的结果分析，得出随观测方位变化的旅行时的差异，可以推出同样存在随观测方位变化的动校正速度的差异。

The dispersion relations of superluminal waves for the longitudinal collective modes in unmagnetized, collisionless and homogeneous relativistic electron-positron plasmas are derived.

导出了无磁化无碰撞各向同性相对论正负电子对等离子体纵波的色散关系。

The paper has studyed the characteristics of seismic wave field in the media of EDA, and has made out three aspects of numerical simulation on wave field features by using definite difference: The simulation of P-wave ground seismic logs in the media of EDA; the diagnostic complication of seismic wave field in cranny belts due to the scattering of cranny wrappage; the decreasing of amplitude and the reversing of polarity of the wave reflected on not only the top but also the bottom of fracture zone.

2通过罗67井岩芯的系统研究表明，泥岩的横波和纵波速度随温度增大而降低，一定温度条件下随为压力而增大；泥岩裂缝的测井曲线一般表现为高电阻率、负自然电位异常、低声波时差，利用该规律可以半量定地识别划分泥岩裂缝储层特征，为解决不同度数据的相互匹配这一重点和难点问题提供了思路和方法。

Polarisation is a property of waves that describes the orienta ...

纵波只沿着波的方向振动，所以没有偏振。

The influence of temperature upon the normalized initial amplitude of P-wave in heavy-oil sand core can be seen at mid and low temperature.

2温度对含稠油砂样的归一化纵波初动振幅的影响主要表现在中、低温阶段；砂样的归一化剪切模量G/Gmax随T升高而线性递减。

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。