城市地震反射勘探
seismic reflection exploration in city
铍反射反射器
beryllium-reflected reactor
浅层地震反射勘探
seismic reflection survey
shallow seismic reflection method
A扫描脉冲反射法
A-scanning impulse reflection method
HSP声波反射法
autocompensation voltmeter
背面反射X射线照相机
back reflection X-ray camera
超声波反射法
supersonic reflection method
超声反射法
ultrasonic wave reflection method
超声脉冲反射法
Ultrasonic pulsed reflection
the ultrasonic pulse-echo method
ultrasonic pulse-echo method
超声时域反射法
ultrasonic time-domain reflectometry