When P wave incidents, The P-P wave and P-SV wave created from the same point are both functions of incidence angle, and of the media above and below the interface, Vp and Vs they are coupled.

在P波入射时，地下同一点产生的P P波和P SV波是入射角、界面两侧纵波阻抗和横波阻抗的函数，并且两者是耦合的。

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The results show that the deep substance may uprise in this area, so the distribution of P-wave velocity, Q value distribution and VP/VS distribution are closely related to seismicity in this area.

结果表明在该地区很可能存在深层物质上升，从而表现出地震活动与P波速度场、Q值分布和VP/VS分布的相关性。

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The QP values as well as the velocities Vp of P wave in dry and saturated specimen of Xiaolangdi sandstone and Fangshan marble are studied as functions of axial stresses.

研究了单轴压缩下超声P波在干燥和饱水的小浪底砂岩和房山大理岩中的衰减和速度。

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He previously had been VP of design for P.

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