For the tight sandstone containing gas, only velocity ratio of P wave to s wave and Poisson ratio are sensitive to fluid variation.
而对于致密含气砂岩，纵、横波速度比及泊松比对流体变化相对较为敏感。
In the meantime, fracture developing frequency of Fuyu oil pay zone is analyzed and calculated by using ratio of vertical wave velocity - "crocodile factor" method.
同时，运用纵波波速的比值——“龟裂系数”方法对扶余油层储层的裂缝发育频率进行了分析、计算。
The intrinsic frequency of P-wave increases because of existence of apparatus and its amplitude has been influenced by velocity ratio of P-wave vs S-wave.
纵波的固有频率因仪器的存在而增大，纵波幅度还受地层的纵、横波速度比的影响。
The results indicate that the precision mainly depends on the ratio of the defect length to the critical defect length defined in this paper when the wave velocity in the piles is accurate.
结果表明，当桩身波速准确时，峰-峰点反演精度主要由缺陷实际长度与定义的缺陷临界长度的比值决定。
The time scale is obtained through the self correlation coefficient of the sound wave. It is clear that the time scale is inverse ratio to the jet velocity under the same gas velocity.
通过自相关系数测量火焰涡团的特征反应时间，结果表明：相同的燃气流量下，特征反应时间与射流速度成反比；
Based on the acoustic wave sounding of the dam foundation of a water control project, the continuous ratio of J1~J4 inter layer shear zone is infered by analyzing the acoustic velocity anomaly.
以某水利枢纽工程坝基声波探测为例 ，通过声速异常分析 ，对J1～J4层间剪切带连续率进行了推定 ，其部分成果经开挖验证具有一定的可靠性。
This dissertation mainly studies the relations between shear wave velocity, dynamic shear modulus, damping ratio and other physical indicators of soils.
本文主要研究土层剪切波速、土动剪切模量和阻尼比以及它们和土的其它物理指标的关系。
This dissertation mainly studies the relations between shear wave velocity, dynamic shear modulus, damping ratio and other physical indicators of soils.
本文主要研究土层剪切波速、土动剪切模量和阻尼比以及它们和土的其它物理指标的关系。
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