The relative amount of these two kinds of water varies greatly from one kind of rock or sediment to another, even though their porosities may be the same.
这两种水的相对含量在不同的岩石或沉积物之间差异很大，尽管它们的孔隙率可能是相同的。
2
The unhealed porosities might be a possible source of flake formation.
这种空隙很可能是白点断口的一种断裂源。
3
It is well known that bed porosities are greater near the bounding surface.