By computing and analytically comparing with formulations developed by other investigators, the bulk diffusion mechanism of reacting gases and chars has been further revealed.
通过计算和与其它研究者开发的计算公式进行比较，进一步揭示了反应气体和炭的容积扩散本质。
Based on the density functional theory, the first principles calculation was performed to investigate the bulk, surface copper and the diffusion in the copper thin film.
本文应用基于密度泛函理论的第一性原理赝势法，较系统地研究了铜体相和表面相，以及锂离子在铜薄膜中的扩散行为。
It is the compostiton of bulk material and deposition temperature that mainly affects the diffusion layer.
影响扩散层的主要因素是基体材料的成分和沉积温度；
Part of their coating forms an alloy-like diffusion layer (about 1 mm) in the bulk of the metallic material, which is a great feature of this treatment.
部分合金涂层形式一样扩散层(约1毫米)在大部分的金属材料，这是一个伟大的特点，这种待遇。
Different mechanisms contribute to T1 and T2. Surface relaxation and bulk relaxation contribute to both T1 and T2. Surface, bulk and diffusion relaxations contribute to T2.
不同的机理对T1和T2都有贡献，表面驰豫和体积驰豫对T1和T2有贡献，表面驰豫、体积驰豫和扩散驰豫对T2有贡献。
In this paper, finite bulk-finite element means is presented for solving convection-diffusion problem, moreover give out the stability analysis.
将有限体积和有限元方法相结合，解决对流扩散方程问题，并给出了稳定性分析。
The axial dispersion in chromatography models was discussed with vector method and the effect of diffusion on the bulk flow flux with its partial quantity form was pointed too.
用矢量方法讨论了色谱模型中的轴向扩散项，指出轴向扩散项是扩散通量以分量的形式在主体流动通量上的页献。
Numerical results indicate how the various parameters such as bulk resistivity and carrier diffusion length in the active region affect the profiles.
以数值结果揭示外延层的体电阻率及厚度、活性区载流子的扩散长度、模增益和丝区宽度等参量对上述各种分布的影响。
The former one was caused by the molecular diffusion from bulk to interface and the latter one was caused by the relaxation of H2D molecules at interface.
液滴扩张和收缩时，H2D分子存在从体相到表面的扩散快过程和分子在表面上的弛豫慢过程两个弛豫过程。
The former one was caused by the molecular diffusion from bulk to interface and the latter one was caused by the relaxation of H2D molecules at interface.
液滴扩张和收缩时，H2D分子存在从体相到表面的扩散快过程和分子在表面上的弛豫慢过程两个弛豫过程。
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