diffusion

[美]/dɪˈfjuːʒn/
[英]/dɪˈfjuːʒn/
词频: 极高

释义

n.扩散,传播;[物]漫射
词形变化

短语搭配

facilitate diffusion

促进扩散

enhance diffusion

增强扩散

promote diffusion

推动扩散

molecular diffusion

分子扩散

diffusion coefficient

扩散系数;扩散率

diffusion equation

扩散方程

gas diffusion

气体扩散,气态扩散

diffusion process

扩散过程

diffusion bonding

扩散压合;扩散接合;扩散粘结

diffusion layer

扩散层

diffusion mechanism

扩散机制;扩散机理

diffusion rate

扩散率;扩散速度

turbulent diffusion

湍流扩散

in diffusion

向内扩散

thermal diffusion

n. 热扩散;热抗散

diffusion flame

扩散火焰

heat diffusion

传热,导热;热扩散

convection diffusion

对俩散

air diffusion

空气扩散

diffusion resistance

扩散阻力

apparent diffusion coefficient

表观扩散系数

diffusion barrier

扩散势垒区;扩散式叠层

diffusion time

扩散时间;弥漫时间

例句

the diffusion of Marxist ideas.

马克思主义思想的传播。

the rate of diffusion of a gas.

气体扩散的速度。

equation of convective diffusion

对流扩散方程

ionic diffusion in solution

溶液中离子的扩散

The effective diffusion coefficient and rate constant of intraparticle transport were calculated.

求出了颗粒内有效扩散系数和颗粒内扩散速率常数。

the diffusion of knowledge through books and lectures

通过书本和授课进行的知识传播

Otherwise, a big error will be aroused.Being the effect of diffusion process, this method is not suitable for cathodal course.

由于受扩散作用的影响,这种等距离电位法不适合对其阴极过程进行修正。

Unhealthy lifestyle often take on the characteristics of self-invention,sociality,diffusion and alterability.

不良生活方式具有自创性、社会性、播散性和可改变性。

Conclusion ADC and signal intensity in lentiform nucleus were not affected by diffusion gradient directions.

结论 豆状核信号强度及其ADC值不受弥散梯度方向影响;

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。

A new diffusion brazing technique with double glow discharge titanizing wasapplied to Cu/Cu brazing.

试验纯铜双层辉光离子渗镀钛扩散钎焊的新方法。

The appearance diffusion coefficient and the fractional anisotropy were measured for the splenium of the corpus callosum, the genu of the corpus callosum, and the hippocampus.

测量胼胝体膝部、胼胝体压部和海马的表观扩散系数和各向异性分数。

The influence of different diffuse gradient direction in different lesions of human brain on diffusion-weighted image has become one of the focus researches of neuroradiology.

不同弥散梯度方向在磁共振弥散加权成像对人脑不同部位的表观弥散系数的影响成为研究的重点之一。

The antibacterial action of the rhizomorph from the Armillaria mella was studied by the methods of agar diffusion, liquid cultivation and surviving bacteria count.

采用滤纸片法、液体培养法和活菌计数法,研究了蜜环菌菌索提取液对常见微生物的抑制作用。

To know the effects of internal and external diffusion on gas-solid catalytic reaction, to grasp the common models of liquid-solid uncatalyzed reaction.

掌握理想流动模型;了解多釜串联模型与轴向分散模型模型设计方程的推导过程。

Since a mutual diffusion between adhesive layer and matrix and a innerstress on interfaces exist,there is a optimal thickness of adhesive layer in composites.

由于聚合物粘接层和基体聚合物的相互扩散以及界面内应力的存在,复合材料中存在一个最佳的聚合物粘接层。

The microforms of diffusion joint were analyzed using field emission scanning electron microscope with an attached energy dispersive Xray analyzer.

利用场发射电镜、能谱仪等对接合区的界面和组织形貌进行了分析比较。

The calculated exemplum by using this model indicates that experimental regression constant in the diffusion coefficient equation varies with the flow velocity of fluid and ranges from 0.014 to 0.020.

研究结果表明,颗粒扩散系数方程中的实验回归系数应考虑成流速的函数,取值范围为0.014~0.020;

Quantum well intermixing induced by impurity diffusion has been used in fabricating nonabsorbing windows in the cavity facets to improve the output power of high-power laser diodes.

杂质扩散诱导量子阱混杂技术可用于制作腔面非吸收窗口, 提高大功率半导体激光器的输出功率。

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