AVO is a seismic exploration technology using the characteristics of amplitude variation versus offset to recognize the rock types and oil-gas reservoir.
是利用振幅随偏移距变化特征分析和识别岩性和油气藏的地震勘探技术。
The new PSA USES variable constraints of local search and global search to avo id falling into local optimal solutions and the degeneration of solutions.
区别于传统捕食搜索算法，新算法采用变化的局部搜索和全局搜索限制，从而避免陷入局部最优和解的退化。
The practice shows that NC automat ic programming can not only reduce the calculation time, but also completely avo id the mistake of manual programming so that …
通过实际应用，数控自动编程不仅大大地节省了计算工作量，而且也完全避免了手工编程的出错率，提高了加工质量和加快了生产周期。
Facing complicated chromatography instrument systems, it is impossible to track the instruments effectively only with the simple measuring tools such as AVO multi-meters.
面对复杂的色谱仪器系统，仅用万用表等测量工具已经无法对仪器进行有效地跟踪。
There are two approximate reflection coefficients applied generally, and their differences are compared in order to attain the linear formula of azimuthal AVO inversion of P-wave.
首先，从理论上讨论了各向异性介质中的反射和透射系数方程，给出了裂缝介质的线性近似反射系数公式；
The principles and application effects of elastic parameter inversion, simultaneous AVO inversion, and stochastic inversion are discussed in the topic of AVO inversion and case histories.
在反演方法及应用实例方面，主要讨论了弹性参数反演、同步反演、随机反演技术的方法原理及实际效果。
However, in the presence of amplitude variation with offset (AVO), and particularly at large offsets, reflection coefficients and polarities may differ significantly from those at normal incidence.
然而，在振幅随炮检距变化的情况下，即当偏移距范围很大时，无论是反射波的振幅还是极性都发生了非常大的变化。
However, in the presence of amplitude variation with offset (AVO), and particularly at large offsets, reflection coefficients and polarities may differ significantly from those at normal incidence.
然而，在振幅随炮检距变化的情况下，即当偏移距范围很大时，无论是反射波的振幅还是极性都发生了非常大的变化。
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