超声回波脉冲数字式测厚仪
ultrasonic echo-impulse digital thickness meter
脉冲回波
Ultrasonic Impact-echo Method
echo impulse
pulse reflecting wave
pulse echo
pulsed echo
pulse echo waves
脉冲回波波形分析
Laser echo waveform analysis
同轴电缆脉冲回波测试仪
coaxial cable pulse echo tester
脉冲离子回旋共振波谱仪
pulsed ion cyclotron resonance spectrometer
超声波回波测距
ultrasonic wave echo measuring distance