Connected to these processes is an increase of the diffusion resistance for CO2 from the atmosphere into the leaf.
与这些过程相联系的是CO2从大气进入叶内的扩散阻力增大。
The gasification reaction rate would reduce because ash would melt, which will plug the coal surface pores and increase gas diffusion resistance.
高温下煤灰发生熔融，将会堵塞煤焦表面孔隙，增大气体扩散阻力，降低气化反应速率。
Water leaching dynamic of chromium is discussed in this study. The result indicates that this water leaching reaction belongs to diffusion resistance model.
本文还对焙烧-水浸过程中铬的水浸动力学模型进行了讨论，研究结果表明该水浸反应的动力学模型属于孔扩散模型。
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