bulk diffusion

基本解释

It was thought that the dynamic process of coal-adsorbed gas may be divided into four stages, i. e. seepage flow, surface diffusion, bulk diffusion and sorption stages;
煤吸附气体动力学过程包括渗流阶段、表面扩散阶段、体扩散阶段和吸着阶段；
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。
www.infopetro.com.cn
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。