The sand density distribution inside the?'mould'after shooting has been calculated.
本文利用两相流理论模拟出射砂预紧实后的密度场分布；
By making small circles with each part of your body, water is re-introduced between the sand and clay particles, reducing the density and making it easier for someone to heave you out.
全身小幅度转圈，水会重新流入沙和粘土颗粒之间，从而减小流沙密度，让别人容易将你拉出来。
Because of the high dry density the dynamical strength of silty sand is higher than those of ordinary sands.
试验得到粉砂的动强度高于一般砂性土，主要是因为制样控制干密度比较大。
Based on the digital mask technique, the distribution of sand area density and the sediment-transport rate in flow field were obtained.
采用图像处理的数字掩码技术，处理图像得到了沙粒在流场中的面密度以及单宽输沙率。
The density changes very little after soaking when the compactness of aeolian sand is above 90%.
风积沙的压实度达90%以上时，浸水所造成的密度改变很小。
In the paper, through the compaction test, the optimum moisture content and maximal dry density of aeolian sand are determined.
本文通过击实试验，确定了风积沙的最佳含水量和最大干密度。
Because the dry wind-blown sand is sensitive to disturbance, the methods for measuring density in current regulations are not appropriate to it.
干燥的风积沙对扰动很敏感，现行有关规程中的密度测定方法对其均不太适合。
The resin-coated sand lined permanent mould casting process was adopted to increase density and dimensions accuracy of castings.
为提高铸件致密度和尺寸精度，采用覆砂铁型铸造工艺。
Depending on its density and thickness the material can be CNC routered, sand-blasted, cut with a hot wire system, or hand-worked with standard woodworking tools such as gouges, chisels and awls.
根据不同的密度和厚度，这些材料可以用CNC数控设备、喷砂设备、等离子切割设备或手动工具来加工成沟槽、凿子和锥子。
The development of population coverage and density was not only affected by sand burial, and more importantly, also affected by other factors, especially soil moisture.
盖度和密度的发育不仅受沙埋的影响，更主要是受沙埋深度影响下的其他资源特别是水分的限制。
The assay use split plot design on two factors, including the date of seeding and density, to define the better density and most suitable date of seeding on sand Jerusalem artichoke.
本试验采用播期与栽培密度两因素的裂区设计，以确定沙地菊芋种植的较佳密度和适宜播期。
Based on the analysis of the perforation applicability, sand production mechanism of formations, and sand control methods in production, a new method of sand control using high shot density was given.
对射孔器和射孔器适用性，地层出砂机理以及目前现场使用的各种防砂方式进行分析，提出了利用高孔密射孔进行防砂的思路。
The location at sand dune was also an important factor, and its effect was more obvious than that of density.
沙丘部位对林分不整齐性的影响作用要大于密度。
The concept of effective density and water content were introduced to describe the physical state of the clay matrix filling between sand particles.
引入有效粘土密度和有效含水率的概念，描述石英砂颗粒之间的粘土基质的物理状态。
The initial relative density of the deposited sand, the velocity of the sphere and excess pore pressure ratio are the main factors in the tests.
试验中考虑了砂土的初始相对密度、钢球的运动速率、液化后砂土的超孔压比等因素的影响。
The high density green-sand molding has a high requirement for materials quality.
高密度湿型砂对原材料的质量要求很高。
Soil density and soil particle of the loam are decreased but those of the sand are increased.
壤土的土壤密度、比重降低，而砂土的土壤密度、比重增高。
Through field survey of wind sand flow movement in the 100 km wind area along the Lan-Xin Railway, a new concept, the density of wind sand flow, is put forward.
通过对兰新铁路百里风区戈壁风沙流进行现场观测研究，提出风沙流密度的新概念，解决风沙流研究中如何利用现场定时观测研究风沙流动态变化特点的重大技术难题。
Geologist can interpreted the lithology, era, sand thickness, sedimentary sequence of the stratum, folding, small fault from the processed depth-density profile.
从深度、密度剖面中，地质人员可以解释出地层的岩性，时代、砂体的厚度、沉积旋回、沉积粒序，几米、十几米的断层和褶皱。
The green sand mold with even density and proof of the impact of liquid metal is one of the critical factors in the production of quality casting.
紧实度均匀、能抵抗金属液体冲击的合格砂型是保证铸件质量的关键因素之一。
The level the anisotropic research, basing on the lamination factor, the sandstone density and the overlap coefficient describes the sand body growth and the distribution;
层间非均质性研究，通过分层系数、砂岩密度及重叠系数来描述砂层的发育与分布；
The vibration signal is processed as stochastic dynamic signal and analyzed by the method of probability density and statistics, thus the trend of sand production of heavy oil-well.
在信号处理时把该信号看作随机的动态信号，采用概率密度和统计学的方法进行分析，从而预测出稠油油井出砂趋势。
The vibration signal is processed as stochastic dynamic signal and analyzed by the method of probability density and statistics, thus the trend of sand production of heavy oil-well.
在信号处理时把该信号看作随机的动态信号，采用概率密度和统计学的方法进行分析，从而预测出稠油油井出砂趋势。
应用推荐