A pressure disturbance cannot drive the energy release profile uniformly to the anti-node region to result in a sustained longitudinal wave . 压力扰动不可能驱使能量释放分布图移至波腹区域以产生持续的纵向波。
2.
Standard practice for immersed ultrasonic testing by the reflection method using pulsed longitudinal waves 用脉冲纵向波反射法进行浸入式超声探伤检验的标准实施规程
3.
The second marks the arrival of transverse vibrations which travel more slowly and arrive several minutes after the first 然后记录下的是横向波的到达,横向波比纵向波传播得慢,在纵向波到过几分钟后能到达。
4.
Any homogeneous viscoelastic medium subjected to one - dimensional tension and compression can be characterized in terms of the phase velocity c ( w ) and the attenuation coefficient deduce the complex modulus and the other equivalent viscoelastic functions 一维的纵向压缩波在同质的粘弹性介质中传播时,材料的粘弹性特性主要通过纵向波的传播速度c ( w )和衰减系数a ( w )两项来定义。