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The second and higher order elastic constants ofsome selected specimens are measured mainly by means of longitudinal wave entrance.

研制了基于计算机辅助信号处理与分析的材料弹性常数超声测定实验系统，对几种试件的二阶和高阶弹性常数进行了实际测定。

Also call P-wave, dilatational wave, and longitudinal wave.

也称为 P-波，膨胀波和纵波。

The relations between the longitudinal and transversal wave s, the wave velocities of rock mass and rock were also described in it.

文章还统计了纵波和横波、岩体波速和岩石波速的关系，可供选用指标时参考。

1 SIMPLE WAVE NATURE OF SOUND 2.1.1 Introduction to Longitudinal Propagation Wave motion or vibration is made possible by inertia and elasticity in a material.

2.1声音的简单波本质2.1.1纵向传播介绍波动或者说震动，是可以通过物体的惯性和弹力产生的。

Relation between longitudinal wave velocity and uniaxial tensile strength is quadratic curve after high temperature.

高温后纵波波速与抗拉强度关系复合2次曲线关系。

Transverse and longitudinal waves in the wave of the wavelength of the wavelength usually refers to the two adjacent peaks or troughs of the distance between.

横波与纵波的波长在横波中波长通常是指相邻两个波峰或波谷之间的距离。

If a transverse wave and a longitudinal wave move together in the same direction, what will be the possible motion of the particles

如果一横波和纵波同时沿相同方向传播，那麼粒子可怎样运动？

Wavelength defined,, wavelength control, transverse and longitudinal wave length , wavelength and frequency relations.

波长定义，，波长掌握，横波与纵波波长，波长与频率关系。

Different types of waves have already been considered. There was the longitudinal wave caused by the pulsating sphere, where the changes of density were propagated through the medium.

我们已经研究过几种不同的波，其中有由圆球的脉动所产生的纵波，它的密度的变化由介质传播。

Data analysis and simulation indicate that longitudinal ultrasonic guided wave can be applied to the on-line distance detection of the pipelines covered or sheltered by barriers.

数值分析和仿真结果表明，利用纵向超声导波可对有障碍物覆盖的管道，有阻碍物遮挡的管道进行长距离、有效的、省事省时的在线检测，与理论分析相吻合。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。