Study on saline-alkali soil moisture diffusivity in songnen plain .

松嫩平原盐碱土水分扩散率研究。

The analysis of the temperature diffusivity of soil effect to the soil temperature field in chilliness area .

严寒地区土壤导温系数对土壤温度场影响分析。

The effects of thermal diffusivity on dendrite growth in subcooled pure metals .

过冷纯金属熔体中热扩散系数对其枝晶生长的影响。

Diffusivity , kinetic energy dissipation , and closure theories for the poleward eddy heat flux .

向极涡旋热通量的扩散率、动能耗散何闭合理论。

The quantitative account shows that the diffusivity increases 4 % - 7 % , magnetic field have no effect on the molecular mass-transfer process of benzene , toluene , acetone and methyl ethyl ketone in the air .

定量计算表明,其扩散系数提高4%～7%。磁场对苯、甲苯、丙酮及甲基乙基酮在空气中的分子传质过程基本无影响。