1. 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. 众所周知，靠近边界表面的床层自由空间率较大。
4. The reason of the formation of gas porosities and cracks on the head face of valve tappet has been studied. 本文分析了气门挺杆端面气孔、裂纹形成原因。
5. With Zn-based alloy as filler metal, a fluxless soldering method for joining Al foams with porosities of 74. 不同孔隙率的泡沫铝采用无钎剂钎焊方法进行连接实验。
