diffusion-controlled reaction

基本解释

It was concluded that the crystal growth was size-dependent and controlled by diffusion and surface reaction.
硝酸硫胺晶体的生长是粒度相关的，生长过程包括扩散和表面反应两方面。
In comparison with PAN, PAN-PPO showed a high electrocatalytic activity for oxidation of methanol and the electro-oxidation reaction was controlled by the diffusion step.
在甲醇酸性体系中，PAN-PPO对甲醇具有较好的电催化活性，此反应受扩散控制。
For isomerization of o-xylene the improvement in para-selectivity has not been observed, because the reaction is not mainly controlled by the diffusion of the reaction products.
但对邻二甲苯异构化反应，由于反应不是单纯由反应产物扩散控制，它们的对位选择性并无明显改善．。