The results show that the velocity and the relaxation peak of the attenuation moved to low frequencies, and the amplitude of the attenuation decreases, as the correlation length increases.
结果表明，当相关长度增大时，相速度的过渡带向低频方向移动，衰减的弛豫峰随相关长度的增大向低频方向移动，且幅度逐渐减小。
The temperature correlation of ultrasound attenuation coefficient in the organization of microwave hyperthermia is researched in order to achieve non-invasive organization temperature.
研究微波热疗组织超声衰减系数的温度相关性，以期实现肿瘤微波热疗超声无创测温。
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。
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