sound-absorption coefficient

Influence of parameters such as attenuation coefficient, velocity of sound, and temperature of medium on focusing sound field generated by a self-focused concave spherical radiator has been studied through numerical simulation with Ray-leigh integral.

以凹球面自聚焦超声换能器为例，用瑞利积分进行数值模拟计算，研究声衰减、声速、温度等参数对声聚焦的影响，并对不同生物组织中声聚焦的特点进行了比较。

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In the case of high frequencies, the sound reflection coefficient at sedimentary layer surface is simplified.

文末对高声频情况下的海底上的声反射系数进行了简化。

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Moreover, the cavitation coefficient that can describe the strength of cavitation is definitude. It has a good consistency with the theoretical maximum sound pressure.

此外，定义了描述空化强弱的空化系数K，并将其与通过理论计算所得的空泡振动最大声压进行比较后发现两者有着较好的一致性。

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In the measurement of random-incidence scattering coefficient by synchronized averaging of the impluse responses, the sound energy decay curve obtained by the backward integration of the squared averaged impulse will be influenced by the correlated components among these responses.

用脉冲响应同步平均法测量无规入射散射系数时，叠加后再经反向能量积分得到的声能衰减曲线，会受到不同脉冲响应中散射成分相关的影响。

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The sound reflection coefficient of the material is one of the important sound characteristics.

吸声材料的声反射系数是表征吸声材料的重要的声学特性之一。

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