衰减系数平均功率随距离的延长而降低的比率。
The attenuation coefficient decreases with increasing of frequency and the gas density.衰减系数随频率增加而减小,并且随密度增加而减小。
Meanwhile, the existence of the acoustic attenuation coefficient benefits the axial resolution.同时,声衰减系数的存在有利于轴向分辨率的提高。
Comprehensive curve pattern, attenuation coefficient and the relationship of plane position and geological abnormity had been conducted.研究了综合曲线的形态、衰减系数大小,平面位置与地质异常体的类型定性关系。
Meanwhile, the existence of the acoustic attenuation coefficient benefits the axial resolution.同时,声衰减系数的存在有利于轴向分辨率的提高。