1·The existence of various lacunas in bolt bonding system will cause the acoustic wave energy attenuation, phase aberration and frequency dispersion.
由于锚固体系中有不同大小和程度的缺陷,声波在传播过程中将产生能量衰减、相位突变及频散现象。
2·The generalized reflection-transmission coefficient matrix method is developed to study the acoustic wave propagation in a layered cylindric symmetric medium.
本文将广义反射、透射系数矩阵方法推广用于研究声法测井中的声波传播问题。
3·ZnO can be used to fabricate transparency electrode, piezoresistor, cell battery window, surface acoustic wave device, gas sensor and light-emitting diode etc.
它可以被用来制作透明电极、压敏电阻、太阳能电池窗口、表面声波器件、气体传感器、发光二极管等。
4·As a new application in oil production the acoustic wave technique has an effective influence on wax control and viscosity reducing.
作为物理法采油技术的一种新应用,声波技术在原油防蜡降粘方向取得了有效的应用效果。
5·A phase interference method, for measurement of the relative change of surface acoustic wave velocities, is presented.
本文提出了一种相位干涉法。用来测量表面声波速度的相对变化。