When the hydrodynamic front reaches the ambient medium it acts like a fast-moving piston . 当流体力学波阵面抵达周围介质时，它像一个运动迅速的活塞。
In saturated flow through a porous medium a force is exerted by the fluid on the solid matrix . 在通过多孔介质的饱和流动中，流体会对固体骨架施加力。
The mirrors here are coated with a multilayered dielectric film having a reflectance of over 99% . 这儿的反射镜上镀了一层多层介质膜，因而反射比超过99%。
Let us now consider polarizable bodies whose resistivities are similar to that of the geological environment . 现在我们来研究电阻率与地质介质相同的极化体。
The name "intrinsic permeability" is now generally accepted as being characteristic of the medium alone . “间隙渗透率”这个名词现在一般只作为介质本身的特性。
Any material that is reasonably insoluble in the dispersion medium can be caused to form a colloidal dispersion . 难溶于分数介质的任何物质都能够形成一种胶体分散体。
From an earthquake source within an elastic medium, both types of body waves will propagate outward into the medium . 这两种体波将从弹性介质中的震源出发，向外传播到介质中去。
For further analysis of seismological interest, specific symmetries of the media need to be considered . 为了进一步分析在地震学方面具有重要意义的问题，必须考虑介质的特定对称性。
It is generally assumed that the pools of ions that exchange very slowly with the external medium are localized in the cell sap . 通常假定，与外界介质交换的离子库位于细胞液之中。
