而衰减项则是填埋体降解速率和时间的函数。
We propose a continuously adjustable, large attenuation factor laser energy attenuator.提出了一种连续可调、大衰减系数的激光能量衰减器。
The correlation property between the distribution of attenuation factor and that of the group velocity is indicated, in this study.研究结果显示,在频率域内,面波衰减系数分布与群速度分布具有一定的相关性。