pulse-echo中文什么意思

例句与用法

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1. This paper introduces two methods of ultrasonic characterization of thin layers : longitudinal pulse - echo and lamb waves
   摘要介绍了两种常用的材料薄层超声表征方法纵波脉冲回波法和兰姆波法。
2. Standard practice for detection and evaluation of discontinuities by the immersed pulse - echo ultrasonic method using longitudinal waves
   利用纵波的浸入式脉冲回波超声法探测与评价不连续性的标准实施规范
3. The elastic modulus of a special alloy material are measured by the ultrasonic pulse - echo method , when the temperature is changed from - 20 ~ 60
   为实现超声声速的快速、精确测量应用数字相关法精确确定超声信号的传播时间。
4. The application of longitudinal pulse - echo is relatively simple , which can provide information of the thin layers such as the depth , ultrasonic velocity , attenuation etc
   纵波脉冲回波法简单易行，能够获得薄层厚度、声速和衰减等信息。
5. Standard practice for evaluating performance characteristics of ultrasonic pulse - echo examination instruments and systems without the use of electronic measurement instruments
   不用电子测量仪,超声波脉冲回音试验制运转性能的评估的标准操作规程