In the following derivation, instead of using pore velocity it is advantageous to use seepage or darcian velocity . 在下面的推导中,不用孔隙速度,而且渗透或达西速度。
Oolite lime sand packs naturally with 40% porosity because the particles are essentially spheroids . 自然堆积的灰质鲕粒砂具有40的孔隙度,因为其颗粒其本上都是球状的。
Rearrangement would account for the open spaces giving rise to a matted appearance of the noninterwoven structure . 重新排列被认为是在并非相互交织的组织结构中出现孔隙因而形成网状组织的原因。
A small leakage through an earth fill or hydraulic fill dam or its foundation removes some fine material in suspension . 贯穿填土坝、水力冲填坝或坝基的一个细小的漏水孔隙以悬浮的方式带走一些细小的土粒。
Cavernous porosity can take the equidimensional form of vugs or follow channels, but the void dimensions are measurable in meters . 溶洞孔隙可呈等尺度的溶孔形态,或者呈溶沟形态,但空间大小是以米度量的。
Field soils often have bulk densities ranging from 1.0 to 1.4gcc; with commensurate porosities and infiltration characteristics . 田间土壤的容重常在1.0到1.4克立方厘米范围内,且具有均匀的孔隙度和渗透性。
Burial diagenesis causes a progressive transformation of smectites, the end-products being dependent on ph and pore water chemistry . 埋藏成岩作用可使蒙脱石进一步转化,最终产物决定于PH值及孔隙水的化学性质。
Metallic coatings - porosity tests - ferroxyl test 金属覆盖层孔隙率试验铁试剂试验
Quantitative analysis of pores in plasma - sprayed zro2 coatings 2涂层孔隙定量分析
Research development of pores in plasma sparayed coatings 等离子涂层孔隙研究进展