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1·Attenuation Coefficient The rate at which average power decreases with distance.

衰减系数平均功率随距离的延长而降低的比率。

2·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。

3·The velocity and attenuation coefficient were measured in the under water acoustic laboratory.

在水声实验室进行原位测量实验，得到了声速和声衰减的数据。

4·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。

5·The attenuation coefficient is determined to at least partially compensate for the target Angle heel effect.

所述衰减系数被确定以至少部分补偿所述靶角度足跟效应。

6·A function of the diffusion coefficient and attenuation coefficient was derived from the measured diffuse reflectance.

又从测得的漫反射率推得漫射系数和衰减系数的函数。

7·The spectrum effect on attenuation coefficient is less than 5%. The material densities can be reconstructed with such precision.

在图像重建中利用上述的线吸收系数能够反演出精度达5%的材料密度。

8·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。

9·We also investigate the relationship between the total attenuation coefficient and the energy density, pulse duration, and pulse repetition.

我们研究了衰减系数和能量密度、脉冲宽度及脉冲频率之间的关系。

10·The power attenuation coefficient and the change of the coherence of the laser through the sediment-laden water are obtained in the experiment.

实验获得了激光穿过浑水的功率衰减系数和相干性变化。