Activitycoefficient is an important parameter in aqueous speciation models, and plays an important role in describing the mass transfer between water and rock quantitatively.
活度系数是形态分布模型中的关键性参数之一，对定量描述水、岩之间的元素迁移具有重要意义。
2
How to estimate the activitycoefficient of a chemical species is a problem which we must deal with carefully.
如何合理地估算活度系数是水环境化学数值模拟工作中必须慎重考虑的问题。
3
The finite diffusion model of CME was established, the activitycoefficient ratio, the diffusion coefficient correction factor and the kinetic parameter were introduced and evaluated.