combining discussion with true examples, this essay solves certain chemical exercises of junior middle school through the law of mass conservation flexibly.
文章论述与实例相结合,灵活运用质量守恒定律,解答具有一定难度的初中化学习题。
based on the theory of gas percolation, law of mass conservation 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。
this paper traces the establishment of law of mass conservation historically and probes into the application of law of mass conservation in junior middle school chemistry teaching.
对质量守恒定律的建立进行历史追蹤;探讨质量守恒定律在初中化学教学中的运用。
according to the law of mass conservation the incremental mass density can be inferred from the divergency of the scalar unperturbed mass density and the vectorial displacement field.
由质量守恒定律,质量密度增量来自未挠动的质量密度的散度和位移矢量场。