查询词典 longitudinal wave

Firstly, if there existed longitudinal wave vectr (k z≠0), the characteristics of interactions between space harmonics were analyzed, and dispersion relations between transversal wave vectors were obtained.

首先，对存在纵向波传播时(kz≠0)的空间谐波相互作用特征进行了分析，得出了横向波传播色散特性。

Hence, based on acoustic potential function and boundary condition on solid interface, we get reflection coefficient and refraction coefficient of longitudinal wave and transverse wave on solid-solid interface, and provide approximate formula of the reflection coefficient and the refraction coefficient about the first critical angle of incidence. We analyze relation between the refraction coefficient and acoustic impedance.

为此，基于固体介质的声势函数和界面的边界条件，推导了固-固界面纵横波的反射系数和透射系数，以及第一临界角入射情况下反射系数和透射系数的近似公式，并且分析了透射系数与声阻抗之间的关系。

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？

We know that a transverse wave will cause particles to vibrate perpendicular to the direction of the wave, and a longitudinal wave will cause them to vibrate along it.

我们知道一横波会令周遭粒子沿波的垂直方向振动，而纵波则会令它们沿波的方向振动。

The wave going along the spreading direction is the longitudinal wave, vibrating in one dimension space at high speed.

第一种是沿传播方向前后震动的分震动，沿传播方向传播出去就成为纵波，在一维空间中震动，传播速度最快。

The wave propagation phenomena of the longitudinal wave in the bars,the flexural and shear waves in the beams were also analysed.

分析了杆中的纵波、Timoshenko梁中弯曲波及剪切波的传播现象。

As the water can not be transmitted transverse wave, so seaquake felt when the sea is only the impact of longitudinal wave, when the impact is power to a certain extent on board ran aground people have feelings.

由于海水不能传播横波，因此海震时在海面上感受到仅是纵波的冲击，当冲击力量大到一定程度时，船上的人有触礁的感觉。

To prove our theory, we have done some experiments: 1 observed the focusing and scanning of the longitudinal wave in isotropic solid ; 2 measured the transition process and weighting effect in isotropic solid; 3 observed the focusing of SAW wave on YZ-LiNbO〓 metaled surface and defocusing as deviation from the pure-mode direction.

为了验证理论，本文用声光衍射的方法观察了：(1)各向同性的Fused SiO〓固体中纵波声束的会聚及焦点沿轴线的扫描；(2)表面阵列在Fused SiO〓固体中纵波+1级会聚的过渡现象；(3)YZ-LiN-bO〓金属化表面上表面波在纯模方向的会聚以及对称轴线偏离纯模方向时严重的散焦。

The basic principles of ultrasonic technology for porcelain post insulator detection are presented, which consists of longitudinal wave detecting with bevel probe and creep-wave detecting.

介绍了采用超声法对支柱绝缘子进行探伤的基本原理，探伤方法主要有纵波斜角超声波检测和爬波超声波检测两种，纵波斜角超声波检测速度较慢。

When the velocity proportion of longitudinal wave to transverse wave of a bed is distinctly different from that of another bed, the reflection factor will be changed with the variation of incident angle according to the elastic wave mechanics, which is the foundation of AVO theory.

由弹性波动力学理论可知，当一种岩层纵、横波速度与另一种岩层纵、横波速度之比明显不同时，反射系数随入射角的变化而变化。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。