This rock, which to you and me looks like a solid, has tiny little pore spaces, and that's where the oil and gas pool.
在你我看来这种岩石似乎是实心的，而事实上它具有非常微小的孔隙空间，那里正是石油或气体郁积的地方。The utility model relates to a sound insulating material, in particular to a foamed aluminum board made of a porous aluminum material.
本实用新型涉及一种隔音材料，尤其多孔隙铝质材料制成的泡沫铝板。They are also easy to fabricate and can BE produced with a wide range of pore size cutoffs for ultrafiltration.
聚砜膜也易于制作，并能制成各种孔隙大小膜，用在超滤上。Porosity is usually derived from the sonic or density, with the proper matrix and fluid parameters for the formations to be encountered.
如果遇到合适的岩层流体参数，孔隙度通常通过声波测井或密度测井计算。Pore water pressure does not always dissipate in short time immediately after the excitations, but it may keep on increasing.
震后土中孔隙水压力不一定随振动的停止而立即开始消散，短期内也可能继续增长。drainage occurs in a surface soil layer, with limited thickness and with high hydraulic conductivity due to its macro porosity.
由于极大的渗透性，当土层厚度变薄或由于大孔隙而具有较高的水力传导性时，表层土壤就会出现排水。Salt rock is considered to be the best media due to its characteristics of good rheological, low porosity, and low permeability etc.
由于盐岩具有良好的蠕变性、低孔隙率和低渗透性等特点，被国际公认为是能源储存的最理想的介质。The results show that this model embodies properly channel curve's change and its effects on water vapor diffusion.
研究结果表明：该模型较好地反映了霜层孔隙率变化时通道弯曲程度的变化，以及这种变化对于水蒸气扩散的影响；But when an excessive amount of water has been used, there will be an excessive number of voids that may cause the concrete to leak badly.
而在使用了过量的水时，就会有过多的孔隙，它们可能使混凝土严重渗漏。