声波反射法是目前顶煤厚度探测的有效方法之一。
The elastic wave reflection method is one of the effective methods of detecting the thickness of the top coal seam.
用于超前地质预报的物探方法主要有，TSP法、地质雷达法、地震负视速度法、陆地声纳法、HSP声波反射法等，这些方法在应用中各有所长。
And the geophysical methods include TSP, Ground Penetrating Radar (GPR), seismic negative apparent velocity method, HSP and so on and these method have their own advantage each other.
本文对超声波油膜厚度测量法进行了探讨。它包括脉冲反射法和连续波法。
Ultrasonic method for oil film thickness measurement is discussed in this paper, including the pulse echo method and the continuous wave method.
该系统采用A型超声波探伤仪产生超声波脉冲，采用一次脉冲反射法检测棒材。
The principle of detector is that the A-Scan flaw instrument of USL32 beams the ultrasonic to detect the bar material with the method of pulse echo once.
该系统采用A型超声波探伤仪产生超声波脉冲，采用一次脉冲反射法检测棒材。
The principle of detector is that the A-Scan flaw instrument of USL32 beams the ultrasonic to detect the bar material with the method of pulse echo once.
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