Based on the theory of gas percolation, lawofmassconservation and hydrodynamics, basic mathematical equation of gas flow model was established.
依据瓦斯渗流理论、质量守恒定律和流体力学,建立了瓦斯流动数学模型的基本方程。
3
Combining discussion with true examples, this essay solves certain chemical exercises of Junior Middle School through the lawofmassconservation flexibly.