The experimental results show that the morphology of graphite has greater effect on the vibration attenuation property of the casting alloy materials than other factors.
试验结果表明：具有不同石墨形态的铸造合金材料对振动衰减的能力差别很大。
There is a heavy attenuation property and there exist sensitive relationships of increase function between attenuation constant and frequency, porosity, osmotic coefficient;
具有强衰减性，衰减系数与频率、孔隙度和渗透系数间存在敏感的增函数关系；
However, it is not trivially easy to use this property for the attenuation of the detected surface-waves.
然而，利用这种性质来衰减观测的面波并非十分容易。
Based on analysis on transmission property of red laser beam, impact from background light, attenuation and scintillation are discussed.
基于对红光激光束大气传输特性的分析，讨论了激光束传输过程中背景光干扰、大气衰减和湍流效应的影响。
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。
It is found that the attenuation of stress wave is important for study of spallation property.
发现在层裂特性研究中，应力波衰减有重要意义。
It is found that the attenuation of stress wave is important for study of spallation property.
发现在层裂特性研究中，应力波衰减有重要意义。
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