Pulse echo method 脉冲回波法 ; 脉冲反射法 ; 脉波回波法
Multiple echo method 多次反射法 ; 多次回波法
ultrasonic echo method 超声波回声法
neutron spin echo method 中子自旋回波法
spin-echo method 自旋回波法
clap-echo method 拍掌回声法
impact echo method 冲击回波试验
Thus this soundwave echo method has its limitation in practical use.
不过，对测定目标物距离来说，声波运行的速度太慢，因此，声波回声测距法在实用中有其局限性。
Ultrasonic echo method is widely applied in non-destructive detection for its advantage of accurate defect locating, wide application, convenient operation and so on.
超声脉冲回波法以缺陷定位准确、适用范围广、操作方便等优点广泛应用于无损检测。
Ultrasonic echo method is widely applied in non-destructive detection for its advantage of accurate defect locating, wide application, and convenient operation and so on.
超声脉冲回波法以缺陷定位准确、适用范围广、操作方便等优点广泛应用于无损检测。
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