n.扩散能力，扩散率; 扩散性

thermal diffusivity → 热扩散率；热扩散系数；热扩散性；导温系数
eddy diffusivity → 涡流扩散系数；涡流扩散性；涡俩散率；涡流扩散率
temperature diffusivity → 热扩散系数；热扩散；导温系数；温度扩散
heat diffusivity → 热扩散率；热扩散性；导热性
mass diffusivity → 质量扩散率；扩散系数
molecular diffusivity → 分子扩散系数；分子扩撒率
air diffusivity → 空气扩散率
mean diffusivity → 平均弥散率；平均扩散率；而平均弥散量；平均扩散度
apparent diffusivity → 表观扩散率

1.Solubility and diffusivity are two key factors in the description of mass transport.
[汉]溶解性和扩散性是描述溶剂在高分子中传质现象的两个关键因素。
2.The turbulent mass transfer diffusivity profile was also obtained by the simulation.
[汉]通过模拟，同时得到了湍流传质扩散系数的分布。
3.In other words the important diffusive motion is migration of the radical segment retarded to the low diffusivity of the whole chain.
[汉]换言之，重要的扩散移动是自由基链段的迁移减慢为低扩散系数的整个分子链的迁移。