结果表明，在现有仪器源距范围内，可以从全波波形中观测到清晰的反射纵波。
The results show that within the limit of these existing equipment source-receiver spacing range, there is be clearly observed P-P reflected wave in the full-wave waveform.
节理产状应力波反演时，关键问题在根据测试振动信号判断出节理面反射纵波初至时刻。
When stress wave is used to inverse joints attitude, the key problem is judge the initial arriving moment of reflected P-wave from the tested vibration signal.
声波全波列测井中的反射纵波可以用来评价高角度裂缝和对井周附近地质结构进行成像。
The reflected compressional waves of the full waveform acoustic logging can be used to evaluate fractures with high dips and image the near borehole geological structure.
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