The attenuation of the sound waves leads to a negativeexponent pressure gradient.
随着波长的增大或介质黏度的减小，声波的衰减减缓，压力梯度越小。
2
The experimental results show the excellent negativeexponent relation appears between the coal mechanical properties and the self-regulating ability of coal matrix.
实验结果表明，煤岩力学性质与其基质调节能力之间呈现出良好的负指数关系。
3
Under a very simple constrain from the Maximum Entropy Principle, we found that an intensity-duration relation of Precipatation processes obeys negativeexponent law.