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词典释义:
diffusion coefficient
时间: 2024-03-20 06:57:14
英 [dɪˈfjuːʒ(ə)n ˌkəʊɪˈfɪʃ(ə)nt]
美 [dəˈfjuʒən ˌkoʊəˈfɪʃənt]

扩散系数

短语搭配
双语例句
  • Results showed that hydrogen diffusion coefficient exponential decreased with the increase of SOC at the same temperature.

    结果表明:在同一温度下,氢扩散系数随着SOC的增大,呈指数关系衰减。

  • The diffusion coefficient of hydrogen in an iron membrane was measured using slightly improved electrochemical hydrogen permeation technique.

    一个略加改进的电化学氢渗透技术被用于测定氢在铁膜中的扩散系数。

  • Diffusion coefficient is one of the important parameters deciding migration prediction in migration model of compounds from food packaging material.

    在食品包装材料化合物的迁移模型中,扩散系数是决定模型预测性的重要参数之一。

  • The estimated diffusion coefficient agrees with experiment within an order of magnitude.

    估计的反常扩散系数在量级上与实验一致。

  • According to the theory of flow diffusion and convection, three dimensional state equation of radon field is established for constant and variable diffusion coefficient and convection rate.

    根据流体场的扩散理论和对流理论,建立了扩散系数与对流速度为常量或变量情况下的氡气场三维状态方程;

  • The factors that influence the nutrients release behavior are as followings: membrane thickness, granule radius, diffusion coefficient, nutrients composition and nutrient dissolving property.

    影响聚合物包膜肥料养分释放的因素主要有:膜厚、颗粒半径、扩散系数、养分组成及其溶解特性。

  • The calculation of chloride diffusion coefficient in prestressed concrete structures eroded by chloride ion is discussed.

    针对氯盐侵蚀的预应力混凝土结构,讨论了氯离子扩散系数的计算。

  • The determination of material structure, performance parameters and membrane resistance, membrane diffusion coefficient of the F4112 ion exchange membrane were introduced.

    介绍了F4112离子交换膜的材料结构、性能参数及膜电阻、膜中扩散系数的测定方法。

  • Expressions of the phonons dispersion, density of the phonon state and the self-diffusion coefficient at the some conditions are also introduced.

    此外,还介绍了在一定条件下的声子色散关系、声子态密度和自扩散系数的表达式。

  • The self-diffusion coefficient measurement shows that the mixed micelles are larger than the pure micelles of STS.

    自扩散系数测量表明,混合胶束比单一阴离子表面活性剂形成的胶束大。

  • In salt water the composites had less water absorption, absorption rate and diffusion coefficient than that in DI water.

    与在去离子水中相比,材料在盐水中饱和吸水率、初始时吸水速率和水扩散系数较小。

  • Finally, the relationship between the stability of the rotating wave and the diffusion coefficient is discussed.

    最后对旋转波的稳定性与扩散系数的关系进行了讨论。

  • A new mutual diffusion coefficient model was proposed based on the relation between self-diffusion coefficient and friction coefficient.

    根据分子间摩擦系数与组分自扩散系数关系,提出一个新的互扩散系数模型。

  • The equilibrium absorption studies indicate that the permselectivity of the anion exchange membrane is related not only to the component solubility, but mean diffusion coefficient as well.

    三种抗衡离子膜的平衡吸收实验表明,该阴离子膜的选择渗透性不仅与醇水在膜中的溶解度有关,而且取决于平均扩散系数。

  • The average value of hydrogen diffusion coefficient in metal hydride(MH) electrode was measured by constant current discharge method.

    利用恒流放电法测定了金属氢化物(MH)电极中氢原子扩散系数的平均值。

  • Physical properties refer to viscosity, density, surface tension, diffusion coefficient, relative volatility and so on.

    物系性质主要指粘度、密度、表面张力、扩散系数及相对挥发度等。

  • The mass transfer equation was introduced into heat transfer model of falling film evaporation. The radial velocity, mass diffusion coefficient and variation of film thickness were taken into account.

    将传质方程引入到垂直管降膜蒸发传热模型中,求解时考虑了径向速度、质量扩散系数和膜厚变化对传热的影响。

  • The coefficients in the equilibrium distribution are determined by the convection coefficient and the diffusion coefficient.

    由对流扩散方程的对流系数和扩散系数确定了局域平衡分布函数的系数。

  • When the temperature and gel don't change, the increasing speed of precipitation is related to electrolyte density, diffusion coefficient and so on.

    在温度和凝胶介质一定时,沉淀的增长速率与电解质浓度、扩散系数及沉淀物质的溶度积常数有关。

  • The model of liquid diffusion in a solid fractal medium is developed by adopting random theory, and thus the relationship of diffusion coefficient between fractal medium and free space is obtained.

    采用随机过程理论导出了液相在固体颗粒分形介质中的扩散方程,得到了分形扩散系数与自由空间扩散系数的关系式。

  • To calculate distribution of sediment concentration in vertical under wave and current, a model of silt diffusion coefficient distribution in vertical is set up.

    为了计算波流共同作用下含沙量沿垂线的分布,建立了沿垂线分布的泥沙扩散系数模型。

  • The density maximum of water and some related properties such as distribution function and diffusion coefficient were simulated in NVT ensemble by applying molecular dynamics method.

    本文采用分子动力学方法对NVT 系综中水的密度极值问题以及分布函数和扩散系数等相关性质进行了模拟。

  • The relation of diffusion coefficient with temperature has also been simulated.

    同时还模拟了流体自扩散系数随温度的变化关系。

  • The mixture ratio of C40 marine high performance concrete is optimized through test of the hydration heat of binding material, slump, chloride ion diffusion coefficient, anti-crack rand of concrete.

    通过测试胶凝材料水化热、混凝土的坍落度和氯离子扩散系数、抗裂等级等性能,对C40海工混凝土的配合比进行了优化设计。

  • Increased partition coefficient and diffusion coefficient values were obtained with these enhancers.

    这些促进剂能增加药物的分配系数的扩散系数值。

  • Diffusion of oxygen in the bonding coating and substrate is mainly grain-boundary diffusion. Grain-boundary diffusion coefficient is far greater than intragrain diffusion.

    氧在粘结底层和基体中的扩散是以晶界扩散为主,晶界扩散系数远远大于晶内的扩散系数。

  • Objective To compare effectiveness of ADC(apparent diffusion coefficient)value and T2 value in the diagnosis of small focal hepatic lesions.

    目的比较表观扩散系数(ADC)及T2值在区分肝脏局灶性小病变性质方面的价值。

  • The paper presents the new compatible formula which indicates the relationship between the diffusion coefficient of cationic dyes and relative affinity of dyes.

    文中介绍了用于表示阳离子染料的扩散系数和相对亲和力的关系的新相容条件式。

近义词
百科

扩散系数,表示气体(或固体)扩散程度的物理量,是指当浓度梯度为一个单位时,单位时间内通过单位面积的气体量,单位:cm2/S或者m2/s。

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