coefficient of diffusion

• 扩散系数

coefficient of diffusion的用法和样例：

例句

1. Two types of diffusions of the small molecules in the polymers were discussed.
   体系大小对扩散系数的计算值影响甚微。
2. The impurity concentration profile depends on epitaxy growth velocity, growth time and impurity diffusion coefficient.
   如果杂质的扩散系数很小，杂质在外延层中的深度分布是均匀的。