The influence of porosity on the effective diffusion coefficients was studied for 18 of Cubased catalysts, which have the different pore structure parameters.
研究了18种具有不同孔结构参数的铜基甲醇合成粒状催化剂孔隙率对有效扩散系数的影响。
The diffusion of coalbed methane in coal reservoirs is defined that the main process of coalbed methane desorbed from coal matrix pore surface migrated to cleat system.
煤层气在煤储层中的扩散是指从煤基质孔隙表面上解吸的煤层气运移到割理系统的主要过程。
However, to date porous MOFs are still largely restricted to the microporous regime despite negative impact of their small pore size on diffusion and mass transfer for their practical applications.
然而，到目前为止多孔金属-有机骨架一直限制在微孔范围，其较小的孔道不利于物质扩散和传输，从而限制其实际应用。
The rapid rate of diffusion of molecules in pore fluids during a nuclear magnetic resonance (NMR) measurement.
核磁共振测量中孔隙流体中分子以极快速度扩散的运动。
Methanol sorption data showed that, near the exposed surfaces, the pore structure was markedly coarser and the diffusion time lower.
甲醇吸附数据显示：暴漏的表面附近，孔的结构明显变得粗糙，扩散时间变得更短。
The effect of pore characteristics on gas diffusion was analyzed. The relationships between the specific area, average pore diameter and porosity with the diffusion coefficient were obtained.
分析了比表面积、平均孔径、孔隙率等孔隙特性参数对扩散的影响，获得了分形多孔介质中气体扩散系数与平均孔径的函数关系。
The influence of porosity of 18 kinds of Cu - based catalysts of methanol synthesis on the effective diffusion coefficients is studied. The catalysts have the different parameters of pore structure.
研究了18种具有不同孔结构参数的粒状铜基甲醇合成催化剂孔隙率对有效扩散系数的影响。
The results show that the releasing intensity mainly depends on the oil diffusion rate and also on the intensity from pore water into overlap water.
结果表明：水体沉积物中石油类的释放主要取决于间隙水中石油类向上覆水体扩散的速度与强度。
Because of its much larger external surface area and much smaller pore diameter than granular carriers, it is expected to benefit diffusion-controlled fast surface reactions.
因为纤维催化剂比粒状催化剂的外表面积大得多，而直径却小得多，因而予计对扩散控制的快速表面反应是有利的。
According to the coal sample's pore fractal laws, the porosity of coal is divided into three categories: infiltration pore, diffusion pore and adsorption pore.
这三类孔同时也对应了瓦斯等气体在煤中的不同的运移状态。
The pore structures of catalyst influence interparticle diffusion which mainly determines the effectiveness factor.
催化剂的孔结构对有效因子有很大影响。
The topological evolution of coupled pore and grain growth during final stage sintering based on a 2-d continuum diffusion-interface field model is studied.
本文采用二维相场模型模拟固相陶瓷烧结后期，晶粒和气孔耦合生长演化过程。
The topological evolution of coupled pore and grain growth during final stage sintering based on a 2-d continuum diffusion-interface field model is studied.
本文采用二维相场模型模拟固相陶瓷烧结后期，晶粒和气孔耦合生长演化过程。
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