“Unsteady state flow through porous media”的概念、定义、翻译、参考文献-科学参考

单词	Unsteady state flow through porous media
释义	Unsteady state flow through porous media Encyclopedia 工学不稳定渗流释 Unsteady state flow through porous media不稳定渗流流体在多孔介质中流动时，运动的主要物理量（如压力、渗流速度等）不仅与空间位置有关，而且随时间变化的渗流方式。又称非定常流动。
随便看	second curvature second demographic transition second derivative second derivative test second derivative test discriminant second development second difference second differential second differential parameter second differentiator second distance second dual second dual module second dual space second economics adjustment of China second eigenfunction second electron emission Second Emperor of Qin Dynasty Second Empire of Brazil second factor second fall-line second Fermat point second field free region second field-free region second field free region (2nd FFR)

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