n.擴(kuò)散性；擴(kuò)散系數(shù)

Solubility and diffusivity are two key factors in the description of mass transport. 溶解性和擴(kuò)散性是描述溶劑在高分子中傳質(zhì)現(xiàn)象的兩個(gè)關(guān)鍵因素。

The turbulent mass transfer diffusivity profile was also obtained by the simulation. 通過(guò)模擬，同時(shí)得到了湍流傳質(zhì)擴(kuò)散系數(shù)的分布。