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molecular diffusion rate 分子扩散速率
The lower boundary of the region above which molecular diffusion dominates is 120 km altitude and is known as the turbopause. 分子扩散占主导地位的区域下界约在120公里处称为湍流层顶。
For low carrier-gas velocities the HETP may become large owing to molecular diffusion effects. 载气线速低时，HETP是靠分子扩展影响而变大。
The following diagram depicts the global scenario in respect of the various economies Internet diffusion rate. 以下图表载列全球各个经济体系的互联网渗透率。
The addition of an appropriate amount of water can depress the diffusion rate of solvents and nonsolvent... 适量水的加入还降低了纺丝成形过程中溶剂、非溶剂的扩散速率,减少了纤维中水含量,有利于制备高性能PAN原丝。
Gas permeability coefficient is decreasing with the increasing of the amount of silica filler, and the particle size plays an important role on gas molecular diffusion. 二氧化硅作为填料,随着添加量的增加,膜的渗透系数降低,且其粒度的大小对气体分子的扩散起重要作用。
The blending can decrease the viscosity of the residue feedstock and therefore promote the molecular diffusion and the rates of demetalization, desulfurizati... 回炼油的掺入降低了渣油加氢进料的粘度,提高了渣油加氢脱硫、脱金属、脱残炭和脱沥青质反应的速率,改善了生成油的性质。
It was found that the shape of absorption signal was controlled by the property of the analyte, the sample vaporization rate and the gas diffusion rate. 结果表明,吸收信号形状由被测元素的性质、样品气化速率和原子蒸气扩散速率决定。
Based on molecular diffusion model of water vapor a theoretical model of frost growth is established and an experimental set with a liquid nitrogen-cooled tube is built up. 摘要以蒸汽分子扩散模型为基础，建立了预测霜层生长过程的数学模型，并建立了以液氮为冷媒的管内强制流动结霜实验台。
Water diffusion rate and status reflect the number of micro-level changes in the movement,which is the same order of the size of human tissue cells. 水分子扩散运动速率与状态反映的是微米数量级的运动变化,与人体组织中细胞的大小处于同一数量级。
The results showed that the plant of Alstonia scholaris grown in field or in fabric bag had lower soil oxygen diffusion rate (ODR) than that in plastic pot. 以黑板树为材料，比较塑胶盆、不织布袋（美植袋和栽植袋）以及田间栽培等生产方式对苗木生长和品质的影响。
Furthermore, the stationary diffusion rate increases with initial adopter rate, but the marginal effects of increasing initial adopters decreases monotonously. 初始采用比例增大导致稳态扩散比例增加，但边际作用单调下降。
The application of laser technique in checking nanometer material is introduced,and amethod for checking the thermal diffusion rate of nanometer material is given. 介绍激光技术在检测纳米材料中的应用，给出了检测纳米材料热扩散率的一种方法。
The study indicates that, the slippage effect is a combined result of gas molecule slip on capillary wall and gas molecular diffusion inside capillary tube, and also a result of combination of concentration and pressure fields. 研究认为，气体滑脱效应是毛细管壁处气体分子滑流和毛细管内部气体分子扩散的综合效应，是浓度场和压力场作用叠加的结果。
The study indicates that,the slippage effect is a combined result of gas molecule slip on capillary wall and gas molecular diffusion inside capillary tube,and also a result of combination of co... 研究认为,气体滑脱效应是毛细管壁处气体分子滑流和毛细管内部气体分子扩散的综合效应,是浓度场和压力场作用叠加的结果。
According to the polycondensation reaction balance and molecular diffusion of water balance and balance of mass transfer theory, the experimental phenomena was explained reasonably. 根据缩聚反应平衡和水分子扩散传质平衡的原理对实验现象进行了合理的解释。
To observe the enhancement of the diffusion rate of capsaicin permeating through the skin by screening several complex accelerators for transdermal drug delivery system(TDS) containing capsaicin. 通过对辛香中药的研究筛选辣椒碱巴布剂的透皮吸收促进剂,提高辣椒碱的透皮扩散速率。
The diffusion rate of HEMIM+ at a acetonitrile (AN) molar fraction (XAN) of 0.8 is far greater than that at 0.7, owing to the rapid increase of coordinating acetonitrile molecules around HEMIM+ ion. 本篇同时也测量混合液之黏度、密度与比导电度等巨观性质，并佐以分子动力模拟以期对于离子的扩散与导电有更深入的瞭解。
The diffusion rate is directly proportional to the gradient but also depends on the molecule's lipid solubility, degree of ionization, and size and on the area of the absorptive surface. 扩散速率直接与梯度成正比，而且还依赖于药物分子的脂溶性、解离程度、分子量大小及吸收表面积。
At this rate we won't be able to afford a holiday. 照这样下去，我们不会有时间／钱去度假的。