The mass transfer equation was introduced into heat transfer model of falling film evaporation. The radial velocity, mass diffusion coefficient and variation of film thickness were taken into account.
将传质方程引入到垂直管降膜蒸发传热模型中，求解时考虑了径向速度、质量扩散系数和膜厚变化对传热的影响。
The reduction activity of nitrate and the formation of ammonium are mainly controlled by the diffusion limitation and the mass transfer of the reactants.
同时，催化剂的活性和选择性受到扩散限制和质量传输的影响。
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。
Vacuum storage of food is a complicated heat and mass transfer process supported by various theories such as diffusion, heat transfer, mass transfer and phase change.
食品真空贮藏过程是复杂的传热传质过程，该过程涉及到扩散、传热、传质等机理。
Based on turbulent diffusion theory and the mechanism of liquid-gas interfacial mass transfer, a conceptual model of turbulent re-aeration process is proposed.
本文根据紊动扩散理论及气液界面质量传递过程，提出了紊动水体复氧过程的概化模型。
The different effects of external sorption, adsorption and diffusion on mass transfer resistance are discussed and the resistance model of membrane mass transfer was built.
讨论了界面吸附、脱附与扩散对传质阻力的不同影响，建立了薄膜传质的串联阻力模型。
The influence of mass diffusion coefficient on the coupled heat transfer is small, and the increase of Reynolds number can restrain the component diffusion.
质扩散系数对耦合换热的影响很小，入口雷诺数的增加会抑制质扩散。
Liquid diffusion coefficient is a critically basic data in the research of mass transfer process and equipment design.
液相扩散系数是传质过程研究、设备设计的重要基础数据。
Liquid diffusion coefficient is a critically basic data in the research of mass transfer process and equipment design.
液相扩散系数是传质过程研究、设备设计的重要基础数据。
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