1.
At present the equation of insert loss hasn't indicated the effect of absorption, only refers to the effect of sound insulation.
目前对声屏障的插入损失计算所用的公式，没有体现材料吸声对绕射声衰减的作用。
2.
The attenuation amount of diffraction of this sound barrie is calculated according to the acoustics principle, the feasible remedies are put forward.
并根据声学原理计算了该声屏障绕射衰减量,提出了切实可行的补救措施。
3.
sound attenuation
消声器（噪声衰减装置）
4.
Test method of attenuation stability for radio-frequency cables
GB/T4098.6-1983射频电缆衰减稳定性试验方法
5.
Methods of measurement of attenuation constant for radio-frequency cables
GB/T4098.4-1983射频电缆衰减常数测量方法
6.
Attenuation, Scattering, Modeling water surface, Light shafts, Caustics.
衰减，散射，水面建模，光线束，焦散。
7.
Simulation Research on Visualization of Radioactive Shield Attenuation Based on OpenGL;
基于OpenGL的辐射屏蔽衰减率的仿真研究
8.
Radiation degradation characteristics of deuterium lamp with MgF_2 window in vacuum environment
氟化镁窗口氘灯的真空辐射衰减特性
9.
The more the room is filled with absorbent the faster the sound decays.
房间的吸收率越高，声音就衰减得越快。
10.
The Influence of Land Covering on the Traffic Noise Attenuation;
地面覆盖物对交通噪声衰减量的研究
11.
High amplitude noise attenuation based on Gabor transform
基于Gabor变换自适应噪声衰减
12.
Discussion on noise attenuation methods in seismic data processing.
地震数据处理中噪声衰减方法的探讨
13.
Beam Attenuation Grid-based Scatter Correction Method for Cone Beam CT
基于射束衰减网格的锥束CT散射校正方法
14.
Acoustics--Measurement of sound attenuation of hearing protectors--Subjective method
GB/T7584-1987声学护耳器声衰减的测量主观法
15.
STUDY OF ECHO THRESHOLD FOR DIFFERENT KINDS OF SOUND SIGNALS
不同类型声信号的衰减延迟与回声阈的研究
16.
STUDY OF THE ACOUSTIC NONLINEARITY PARAMETERS IN HIGH ATTENUATION BIOLOGICAL MEDIA
高声衰减生物媒质非线性声参量的研究
17.
Ultrasonic Density Meter Design Based on Ultrasonic Echo Attenuation Theory
基于超声波回波衰减理论的超声波浓度计设计
18.
Kraken Marine Acoustic Model and Its Numerical Experiment for Acoustic Propagation and Decay
Kraken海洋声学模型及其声传播与衰减的数值试验