concentration coefficient of diffusion 扩散浓度系数 cross-term diffusion coefficient 交叉期扩散系数 ..
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Then this paper studied the effect of diffusion coefficient on concentration distribution and the conditions of substitution with numerical dispersion for physical diffusion.
通过将该半解析解与忽略扩散的数值解进行对比分析，讨论了数值弥散代替物理扩散的条件。
Decreasing hydraulic conductivity and diffusion coefficient may delay the increasing rate of the concentration ratio at the base of a GCL.
结果表明，减小渗透系数和扩散系数可以有效减缓衬垫底部浓度比的增加速度。
The diffusion coefficient of the molecule increases with temperature increasing, which makes radon released from radium source increase and causes radon concentration to increase;
温度增加，分子的扩散系数随着增加，使镭源释放的氡量增加，导致氡浓度变大；
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