衰减系数平均功率随距离的延长而降低的比率。
Attenuation Coefficient The rate at which average power decreases with distance.
同时，声衰减系数的存在有利于轴向分辨率的提高。
Meanwhile, the existence of the acoustic attenuation coefficient benefits the axial resolution.
提出了一种连续可调、大衰减系数的激光能量衰减器。
We propose a continuously adjustable, large attenuation factor laser energy attenuator.
衰减系数随频率增加而减小，并且随密度增加而减小。
The attenuation coefficient decreases with increasing of frequency and the gas density.
利用不同深度界面的回波频谱分析提取衰减系数剖面。
The attenuation is extracted by the spectrum of the layers at different depth.
又从测得的漫反射率推得漫射系数和衰减系数的函数。
A function of the diffusion coefficient and attenuation coefficient was derived from the measured diffuse reflectance.
实验获得了激光穿过浑水的功率衰减系数和相干性变化。
The power attenuation coefficient and the change of the coherence of the laser through the sediment-laden water are obtained in the experiment.
CFS不直接使用优先级而是将其用作允许任务执行的时间的衰减系数。
CFS doesn't use priorities directly but instead USES them as a decay factor for the time a task is permitted to execute.
瓦斯含量与煤层衰减系数呈对数相关，与品质因子呈线性相关。
The seam gas content was logarithmic related to the seam vibration wave attenuation parameter. The gas content was linearly related to the quality divisor.
最后给出数值结果，表明磁场的变化对振动频率及衰减系数的影响。
By using a numerical method, the effect of changing in magnetic field upon vibration frequency and coefficient of reduction is presented.
此外，我们还运用转移矩阵的方法对衰减系数的相关参量进行了分析。
Furthermore, the corresponding parameters of the decay coefficient are analyzed through applying the transfer matrix theory.
衰减系数的校正是磁共振波谱信号处理和分析过程中的一个关键难题。
Damping factor alignment is a key and difficult problem to the signal processing in magnetic resonance spectroscopy.
低优先级任务具有更高的衰减系数，而高优先级任务具有较低的衰减系数。
Lower-priority tasks have higher factors of decay, where higher-priority tasks have lower factors of delay.
可以通过测量多个破片的飞行速度与飞行姿态角，推导出速度衰减系数。
After measuring the velocities of many fragments and the flying Angle, the coefficient of velocity attenuation can be calculated.
设计单波长准直光透射实验并通过实验测量组织模拟样品的总衰减系数；
Single wavelength collimation transmittance experiment is designed and conducted, with total effective attenuation coefficient of tissue phantoms being obtained.
以波导耦合理论为依据，设计了集光电为一体的波导衰减系数测量系统。
This article is based on coupling theory and has been designed the incorporating photoelectricity measuring device of waveguide modulus decay.
这表明，经过适当处理，是可以根据频率衰减系数的变化来预报地震的。
This shows that an earthquake may be predicted by making use of the variations of the frequency attenuation coefficient if the available data are properly processed.
采用数字手段测取了超声波信号的衰减系数，通过衰减系数可得出含沙量。
By using the digital means, the attenuation coefficient of the ultrasonic signal is measured, through which the sediment content can be obtained.
这些岩石声学参数为波幅、谱幅、谱面积、谱密度、波速度、衰减系数等。
The rock acoustic parameters in this paper include wave amplitude, spectral amplitude, spectral area, spectral density, wave velocity and attenuation coefficient etc.
从这个数据中算出存储弹簧指数、绝对弹簧指数、衰减系数以及损失系数。
The storage spring constant, absolute stiffness, decay factor, and loss factor can be calculated.
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。
Comprehensive curve pattern, attenuation coefficient and the relationship of plane position and geological abnormity had been conducted.
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。
The correlation property between the distribution of attenuation factor and that of the group velocity is indicated, in this study.
介绍了利用劈形楔块作波型变换，达到用纵波探头测量材料横波衰减系数的方法。
A method is presented for measuring the shear-wave attenuation of solids by using propagation of ultrasonic wave in a wedge block.
本文介绍利用超声共振法测量声速和声衰减系数的原理及自来水和乙醇的测量结果。
In this paper, the principle and primary results of measure ultrasonic sound velocity and attenuation coefficient by ultrasonic syntonic method are introduced.
在TGS透射测量中，线性衰减系数值的图像重建问题是TGS的难点和核心问题。
The image reconstruction problem of linear attenuation coefficients is very difficult and central in transmission TGS.
结果表明：超声衰减系数与频率之间存在线性关系，而且其斜率随孔隙率的增大而增大。
The attenuation coefficient shows approximately linear behaviour with frequency over the frequency range used, and the attenuation slope increases with the void content.
对获得的典型弹片迎风面积和弹片测速数据综合计算，就可获得弹丸初速及弹片衰减系数。
After synthetically calculating the fragment windward area and the measurement data of the speed, we can obtain the initial velocity of the shot and the decay coefficient of the fragment.
对获得的典型弹片迎风面积和弹片测速数据综合计算，就可获得弹丸初速及弹片衰减系数。
After synthetically calculating the fragment windward area and the measurement data of the speed, we can obtain the initial velocity of the shot and the decay coefficient of the fragment.
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