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；

youdao

Finally, the implementation of these three programs are compared to analyze the differences between them and their respective scope of application.

最后是对这三种实施方案进行比较，分析它们之间的差异以及各自的适用范围。

youdao

Both Democrats say the differences between them are small, compared to their differences with Republicans.

NPR: Obama Meets with Clinton After Va. Campaign Stop