An effective method for solving a partial differential equation of secondary hydrocarbon migration is put forward.
本文给出了一种高效率求解油气二次运移偏微分方程的方法。
2
Based on the imaging principle of SEM, the equation for illustrating the theoretical resolution of secondary electron image has been deduced in this paper.
本文是从扫描电子显微镜的成像原理出发，推导了有关阐明二次电子像理论分辨率的公式。
3
And the adsorption process of modified bentonite to direct fast turquoise blue can be better described by quasi secondary rate equation.