effective mass equation的意思|示意

The experimental result shows that the obtained mass transfer equation is acceptable and effective, with relative error under 10%.

结果表明，所得的传质方程可信、有效，相对偏差在10%以内。

Using the theory of damage mechanics and fracture mechanics, the damage tensor, effective stress tensor and damage strain, etc. of rock mass are defined, propagation equation of damage is developed.

运用损伤力学以及断裂力学理论，定义了岩体损伤张量、有效应力张量、损伤应变等，建立了损伤演化方程，从而建立了多裂隙岩体的损伤断裂模型。