超声回波脉冲数字式测厚仪
ultrasonic echo-impulse digital thickness meter
脉冲回波
echo impulse
pulse echo
pulsed echo
pulse echo waves
pulse reflecting wave
Ultrasonic Impact-echo Method
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