流过...

In chapter 2, we focus on derivation of the tortuosity models for flow of Newtonian incompressible fluid in two- and three-dimensional porous media with spherical, cubic and plate-like particles by applying the geometrical method. We first present the ideal geometrical models of porous media to show the ideal and representative streamlines based on the assumption that some particles in porous media are unrestrictedly overlapped and hence of different configurations, then the average tortuosity is derived by geometrically and weightedly averaging these representative flow paths.

第二部分采用几何分析法研究了二维和三维情况下的球形颗粒、立方体颗粒和板状颗粒多孔介质中流体流线的迂曲度，首先给出多孔介质的理想几何模型，通过分别考虑固体颗粒重叠时、不重叠时以及粒子的不同排列等情形时的流体流线，然后对这些理想代表性流线的迂曲度取几何平均和加权平均，最后推导出流体流过多孔介质的迂曲度解析表达式。

The brook warbled over its rocky bed.

小溪潺潺流过多石的河床。

Driven by water passing from below, as a water wheel .

下射式的由从下面流过的水驱动的，如水轮

The main reason is that the lift on the fins depends on the velocity of flow around them.

主要原因是减摇鳍，升力的产生源于水流流过鳍的速度。

It acts as a geologic rasp, scratching, gouging and generally abrading the surfaces over which the glacier rides

它就像一把地质锉刀一样通过刮、刨等作用来磨损冰川流过的表面。

It seems likely that changes in snowfall amounts, with season or in storm intensities, will alter the timing, temperature relations, and extent of avalanching.

小胡姆丹冰川在19世纪也形成过大型冰坝，其边缘已经进入河流并且从河上横跨过去，现在河水是从冰下流过的。

He looked at us and said, I wish you could have met my Dad. He was a big man, and he was strong from pulling the nets and fighting the seas for his catch. When you got close to him, he smelled like the ocean. He would wear his old canvas, foul-weather coat and his bibbed overalls. His rain hat would be pulled down over his brow.

他看着我们说道，我真希望你们能够见到我的父亲，他是个高个子，他很强壮，自己一个人拉渔网捕鱼，当你离他很近的时候，你会闻到他身上咸咸的海水的味道，他喜欢穿着他的那件旧牛仔衣服，挡风的雨衣和旧围兜，雨水顺着他的雨帽流过他的眉毛。

The white birches grow naturally in a group here, and the spring water is gushing out and flowing.

此处有大片的白桦林，山谷中溪水涓涓流过。

The river brawled over the rapids.

河水哗哗地流过湍滩。7 G5 h5 f# x

It is quiet but subtle, as the wind breezing, as the water flowing.

一切安然平淡，如风吹过，如水流过。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。