And then the comprehensive comparisons and researches are carried out between the Niu1equations of constituent porous medium velocities models, quadratic interpolation speed Niu2 equationsand classical Biot-Gassmann equations.

• 再次,基于多相组分介质模型对组分型孔隙介质速度模型Niu1公式、二次插值速度Niu2公式与经典的Biot-Gassmann方程作了较全面的对比分析;