An analysis was performed on difference between the apparent porosity and macro porosity in SEM observation of bentonite microstructure.
对膨润土微观结构SEM观察时出现的表观孔隙率与宏观孔隙率不一致的问题进行了分析,讨论了SEM观察时冻干法对饱和膨润土微观结构的影响,得到表观孔隙率与宏观孔隙率之间的关系式,证实了膨润土中存在粒间孔隙和粒内孔隙,且2种类型的孔隙可以通过SEM的试验方法区分开。
It also studies the influences of W/C ratio, water reducer, and air－ detraining admixture on the porosity and apparent porosity and of porosity and apparent porosity on the intensity.
文章简要介绍了水泥石各种类型气孔的形成原因 ,研究了水灰比、减水剂、消泡剂对孔隙率、表观孔隙率及强度等的影响。
Surface porosity, surface composition and surface tension are all relevant factors.
表面孔率、面组分及表面张力也都是相关因素。
measuring apparatus for measuring expansion, porosity, surface tension, viscosity
测量膨胀、孔率、表面张力或粘度用测量仪
Wetting and Oil Recovery of Surfactants in Porous Media
表面活性剂在多孔介质中的润湿与洗油效率
Experimental investigation on film cooling effectiveness of multi-hole at longitudinal wavy surface
多孔纵向波纹表面气膜冷却效率实验研究
Preparation of nanoporous silica films with varying porosity by manipulating the amount of surfactant
利用表面活性剂量改变孔洞率制备的纳米多孔SiO_2膜(英文)
This product has super dispersibility,high production rate and the objectfoamed by ithas small and uniform foamsand has smooth surface.
分散性好，生产效率高，制品泡孔微细、均匀一致、表面光滑。
taken in through the pores of a surface.
通过表面的孔被吸入。
controlled surface porosity support
可控表面孔度支持体
a gloomy face, expression, voice, person
忧伤的面孔、 表情、 声音、 人.
a woebegone child, expression, face
悲哀的孩子、 表情、 面孔.
The moisture buffering effect of this layer depends very much on the air exchange rate and also on the ratio of the surface area of the buffer to the volume of the room.
湿缓冲效果依赖于空气置换率和房间内多孔缓冲材料的表面积和空间的比率。
For this simulated building, the ratio of surface to volume is set to one square metre per cubic metre.
在这一模拟试验中，房间内多孔缓冲材料的表面积和房间内空间的比率为1平方米：1立方米。
Brian has an honest face.
布赖恩长有诚实坦率的面孔。
Preparation of Porous Carbons and Control of Porosity and Surface Functional Groups;
多孔炭的制备及其孔结构、表面官能团的调控
Chemically Modify on the Surface of Macroporous Polystyrene Materials;
聚苯乙烯表面大孔材料孔道内的化学修饰
Preparation of Biomorphic Porous Carbon and Functionalized Modification of Its Cell Wall
生物遗态多孔炭制备及其孔表面功能化修饰
Fabrication of diamond films on the interior surface of large hole
大孔径内孔表面金刚石薄膜涂层的制备
Synthesis of Mesoporous Materials With Large Surface Area and Micropore Duct
具有高比表面积和微孔-介孔分子筛的合成