neutron diffusion theory是什么意思

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用法例句

A study based on diffusion theory for exchange-reaction of RLA model;

扩散理论对RLA模型中交换作用的研究

A study of sediment transport from the equations of turbulent two-phase flows──A discussion on diffusion theory and diffusion coefficient of sediment;

从二相流方程出发研究平衡输沙──扩散理论和泥沙扩散系数的讨论

Based on the analysis of characteristics of sediment particle concentration distribution,it is pointed out that the diffusion theory can describe sediment concentration distribution in main flow region but cannot explain sediment concentration distribution law near bottom because of the existence of sediment colliding shear stress.

在分析泥沙颗粒含量分布特性的基础上,指出扩散理论能较好地描述主流区的泥沙含量分布规律,但在近底流区由于泥沙碰撞切应力的存在,使得扩散理论不能解释此区域的泥沙含量分布规律。

A fast and accurate multigroup neutron diffusion calculation method was established for reactor core,and the semi-analytic nodal method(SANM) based on transverse-integrated diffusion equation was introduced within the framework of the analytic coarse mesh finite difference(ACMFD) formulation.

为快速、精确实现反应堆堆芯多群中子扩散计算,采用基于横向积分技术的半解析节块方法(SANM)求解中子扩散方程,并结合解析粗网有限差分(ACMFD)方法,导出了基于半解析节块方法的粗网有限差分方程(CMFD)耦合系数。

A passive sampler based on a gas molecular diffusion theory, combining with the Saltzman method, was used to determine the nitrogen dioxide of indoor and outdoor environment.

　运用基于气体分子扩散理论自制的被动采样器,结合Saltzman法,通过该采样器在室内外进行曝露采样检测NO2的含量。

The diffusion model of the number of Internet purchase

基于扩散理论的网上购买人口扩散模型

The Diffusion and Adoption of Shopping Online Based on the Theory of Innovation Diffusion

从创新扩散理论看网上购物的扩散和采用

The Space Congestion-Diffusion Theory in Western Countries and the Diffusion of Beijing City s Function;

西方空间集聚—扩散理论及北京城区功能的扩散

ERP Application Empirical Study Based on Diffusion of Innovation Theory;

基于创新扩散理论的ERP应用实证研究

The Evolution Theory of Apple,Diffusion of Innovations Theory and Innovative Decision of Product

苹果细节进化论——创新扩散理论与产品创新决策

Many of the above-mentioned trends can be rationalized in terms of quasi-steady diffusion theory.

上述的许多问题可用准稳态扩散理论加以推理。

Study on Gradient Passing and Diffusion Theories Based on Circular Economy;

基于循环经济的梯度推移和扩散理论研究

A Study on Molecular Spectra of Aicohol-Water Mixtures and the Diffusion Theory with Photon Density Wave;

醇类物质光谱学和光子密度波扩散理论研究

Study on Grout Diffusion Theory and Experiments under Static or Dynamic Loading;

静动力作用下浆液扩散理论与试验研究

Theoretical and Empirical Study on the Technology Innovation Diffusion of Agricultural Science and Technology Park;

农业科技园技术创新扩散理论与实证研究

The Appliance of SA in English Vocabulary Teaching;

激活-扩散理论在英语词汇教学中的应用

Risk assessment of grassland fire in Jilin Province based on information diffusion theory;

基于信息扩散理论的吉林省草原火灾风险评价

Study on Brand Spreading Based on Innovation Diffusion Theory

基于创新扩散理论的企业品牌传播研究

Theoretical Studying of the Technology Diffusion Speed Model in Technology Diffusion Field;

技术扩散场技术扩散速度模型的理论研究

Theoretical Study on the Model of Technical Diffusion State in Technical Diffusion Field;

技术扩散场技术扩散状态模型的理论研究

Theoretic and Experimental Study of High Temperature Diffusion in Large Forgings;

大型锻件高温扩散的理论与实验研究

A Study on the Spill Effect Model in the Diffusion Field;

技术扩散场溢出效应模型的理论研究

Mechanisms and Methods for Diffusion Process in Solid Metals

固态金属中质点扩散过程理论及方法