According to the Laplace formula, the gel film can form gel at the connections of sand grains, so as to make sand grains cemented.
由Laplace公式得知 ,冻胶膜最终可在砂粒接触处形成冻胶 ,从而起到对砂粒的胶结作用。
The authors discussed the procedures for dewatering the fine tail sand after analyzing the feature of the sand,water and water force,as well as the relations between permeability and time for dewatering.
从尾砂的特征、含水性质及水力学关系,导出尾砂渗透系数值与脱水所需时间的关系公式,阐述细粒尾砂脱水的工艺措施。
Experimental study on sand grain migration in wellbore;
井筒砂粒运移规律室内模拟实验研究
Minute rough granules, as of sand or stone.
砂，砂砾，砂粒细小的粗颗粒，如砂和石头粒
sand-packed tube displacement
砂粒填充管驱替试验
gravel to sand size ratio
砾石-地层砂粒度比
andreasen pipet
安氏型砂粒度测定仪
The sands [grits] in the cooked rice made my tooth ache.
米饭里的砂粒硌痛了牙。
Applicable sand material: Aluminum oxide Sand of ＃26-＃320, carborundum, glass beads, Plastic sand blasting grains.
适用砂材：＃26-＃320氧化铝砂、金刚砂、玻璃珠、塑胶喷砂粒等。
the silt and the clay content enhance 0.67% and 1.53%;
粉砂粒和粘粒含量提高0.67%和1.53%;
"a clay soil contains a large amount of clay, a sandy soil a large amount of sand, and a loam is a mixture of all groups. "
粘土含大量粘粒，砂土含大量砂粒，壤土是这4类土粒的混合体。
"That refers to the percentages of sand, silt and clay in the soil. "
那指的是土壤所含的砂粒、粉粒、粘粒的百分比。
The sand is separated from the silt and clay by wave sorting.
砂粒在波浪分选作用下从粉砂及粘土中分出。
Sandy soils along the coast have relatively large spaces between the sand grains.
沿海地区的砂质土壤，砂粒间的空隙也相对较大。
A Study of Grit and Organics Removal Efficiency of the New Rotational Flow Grit Chamber;
新型旋流沉砂池砂粒和有机物去除效率的研究
②the composition of grade are sand 44.75%,silt 31% and clay soil 24.25%;
②粒级构成:砂44.75%,粉砂31%,黏土24.25%;
(2) The composition of grade is as follows: sand 44.75%, silt 31%, and clay soil 24.25%.
(2)粒级构成为：砂44.75％，粉砂31％，黏土24.25％；
formation-to-gravel size ratio
地层砂与砾石粒度比
grit size, grit number
[砂纸]粒度号数,粗细
Uranium coats sand grains.
铀被覆盖在砂岩颗粒上。
Three kinds of state of arscnopyrite are developed at the deposit, i. e. corse-grained arsenopyritc, veinlet arsenopyrite and arsenopyrite-bearing quartz vein, and fine-grained disseminated arsenopyrite.
毒砂可划分为大颗粒毒砂、细脉状及毒砂石英脉中的毒砂和细粒浸染状毒砂三种性状.