Amplitude has exponential decrease with increasing frequency in brine-saturated rocks.

在饱和盐水的岩石中，声波振幅随频率的增高而呈指数衰减。

youdao

In column experiment the salt release flux from different sediment can be expressed as a negative exponential function and decrease in the order of silty clay, medium-fine sand and pelitic silt.

静水实验中沉积物向上覆水体盐分释放通量符合负的幂指数形式，并按粉质粘土、中细砂、泥质粉砂顺序递减；

youdao

By nonlinear regression analysis the change law is found that with the increase of geostress the permeability coefficient will decrease with negative exponential trend.

然后通过回归分析，可以发现该地区渗透系数随地应力值的增大呈负指数递减的变化规律。

youdao