Thus instead of Boltzmann equation this model equation may be approximately used to discuss the motion of gases in the transient region between molecular flow and viscous flow Iimits.
因此可以近似地用此模型方程序代替玻氏方程序讨论介于分子流和粘性流之间的过渡区的气体运动情况。
The effects of PLMA′s relative molecular mass, content, temperature and flow state on the drag reduction effectiveness and the shear stability were discussed.
考察了其粘均相对分子质量、质量分数、温度及流态对减阻效率、抗剪切稳定性的影响；
Molecular sieve absorption system is adopted in the process flow to efficiently purify air and simplify fractionation system flow.
工艺流程中采用分子筛吸附系统，可有效净化原料空气，从而可以简化精馏系统的流程。
Contraction flow behavior contributes significantly to the orientation and structure of molecular in micro injection molding.
聚合物流体的收缩流动行为是微注射成型工艺过程中影响分子取向与结构的重要因素。
Relative porosity factor value can be used to characterize the relation between the molecular size of the polymer and the its retention in the flow of polymer solution through porous media.
相对孔隙系数值可用以表征聚合物溶液流经孔隙介质时聚合物分子尺寸与滞留作用的关系。
The results also shows that the drug with lower molecular weight is more easy to spread in tumor and excrete with interstitial fluid flow.
研究还表明，分子量较小的药物更易在肿瘤组织内传递，也更易随着组织液流动向肿瘤外排出；
Impact of composition upon the cold flow properties for biodiesel was investigated by molecular structure, solution crystallization theory and similarity-intermiscibility theory.
在分析生物柴油分子结构的基础上，应用色-质联用仪、低温性能测试仪、溶液结晶原理和相似相溶原理研究生物柴油的低温流动性。
Thus instead of Boltzmann equation this model equation may be approximately used to discuss the motion of gases in the transient region between molecular flow and viscous...
因此可以近似地用此模型方程序代替玻氏方程序讨论介于分子流和粘性流之间的过渡区的气体运动情况。
Objective To observe the influence of low molecular weight heparin on cerebral blood flow and brain function in patients with acute cerebral infarction in different therapy time window.
目的研究不同时间窗低分子量肝素治疗急性脑梗死的疗效及其对患者脑血流量和脑电图的影响。
Although the benefit from flow field is widely recognized in academia and polymer industry, no satisfactory molecular theory has been achieved yet.
尽管流动场对聚合物结晶的有益作用已经被工业界和学术界广为接受，但目前还没有获得一个令人满意的分子理论。
The main factors influencing the flow properties of ultra high molecular weight polyethylene (UHMWPE) are analyzed.
分析了影响超高分子量聚乙烯(UHMWPE)熔体流动性的主要因素。
A new mathematic model based on analysis of liquid flow, mass transfer and heat transfer is proposed to describe wiped film molecular distillation.
在对刮膜式蒸馏器蒸发表面流体流动和传质传热进行分析的基础上，研究了分子蒸馏过程，并建立了数学模型。
It is impossible to have a cyclic machine that completely converts the random molecular energy of heat flow into the ordered motion of mechanical work.
不可能得到一种循环机器能把热流的无序的分子能量完全转变为机械功的有序运动。
The average molecular weight and its distribution of polystyrene obtained in microsegregation reactor are also between those of piston flow...
产品平均分子量和分子量分布亦介于平推流反应器和微观最大混合反应器之间。
The brief reviews are made in respect to molecular simulation, simulation of unit operations, simulation of process flow-sheet and the impact of supercomputer on process simulations.
本文试图就分子模拟、单元操作模拟、流程模拟以及计算机技术进步对过程模拟技术的影响等几个方面对八十年代后期的新进展做一简要评述。
Drag reducing agent through molecular associations have high shear stability in turbulent flow was studied and found its shear stability in turbulent flow has been improved greatly.
初步研究了抗剪切降解型分子缔合减阻剂，通过分子缔合减阻剂多次的减阻测试，发现缔合减阻剂在抗剪切降解性方面有较大提高。
In recent years, some new model approaches have been adopted to explain the flow-induced crystallization, such as the molecular model and the phenomenological model.
近年来，人们又提出了一些全新的流动致结晶理论，比如分子模型和唯象模型。
The drag of flow in pipes can be greatly reduced by adding a very small amount of high molecular polymer to water.
在清水里加入微量的高分子聚合物，可以大大降低管路阻力。
But the viscosity and viscoelasticity of ultra high molecular weight polyacrylamide decrease significantly. The ability of establishing flow resistance of polyacrylamide is limited after shearing.
而超高分子量聚丙烯酰胺经剪切后粘度和粘弹性显著下降，建立流动阻力的能力有限。
Molecular dynamics simulations were carried out to study the fluid flow pass a circular cylinder at different Reynolds number at microscopic level.
采用分子动力学方法，对不同雷诺数的纳米柱绕流问题进行模拟。
The rheological properties and their mathematical models of rice amylopectin were studied to understand the flow regular and the influences of the molecular properties on the flow character.
对稻米支链淀粉的流变学特性和数学模型进行研究，以掌握其流动规律及摩尔质量对流动特性的影响。
The average molecular weight and its distribution of polystyrene obtained in microsegregation reactor are also between those of piston flow and maximum micromixing...
产品平均分子量和分子量分布亦介于平推流反应器和微观最大混合反应器之间。
The paper involves issues of repairing stand bearing block hole with high-molecular complex material, including process flow, tips for positioning for the repair and result of the repair.
介绍了采用高分子复合材料修复机架轴承座孔的工艺流程，修复定位要点及修复效果。
The following physical model used is such as free-molecular flow;
所采用的模型为：分子流；真空室为无限长圆柱形容器；
The following physical model used is such as free-molecular flow;
所采用的模型为：分子流；真空室为无限长圆柱形容器；
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