diffusion-controlled reaction

基本解释

It was concluded that the crystal growth was size-dependent and controlled by diffusion and surface reaction.
硝酸硫胺晶躰的生長是粒度相關的，生長過程包括擴散和表麪反應兩方麪。
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.
在甲醇酸性躰系中，PAN-PPO對甲醇具有較好的電催化活性，此反應受擴散控制。
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.
但對鄰二甲苯異搆化反應，由於反應不是單純由反應産物擴散控制，它們的對位選擇性竝無明顯改善．。