Diffusion coefficient is one of the important parameters deciding migration prediction in migration model of compounds from food packaging material.
在食品包装材料化合物的迁移模型中，扩散系数是决定模型预测性的重要参数之一。
2
Hall coefficient depends on electronic concentration and the relative values of empty hole concentrations and their migration rate in the semiconductor.
而霍耳系数取决于半导体材料中电子浓度和空穴浓度的相对大小及其迁移率之比。
3
The purpose ofmigration is to inversely solve for the singularity (interrupted surface of interval velocity) of wave equation coefficient.