range and attenuation 调节适当的量程和衰减
Attenuation and attenuation distortion 衰减失真
WIDE GAIN AND ATTENUATION RANGE 宽增益及衰减范围
spread and attenuation 传播与衰减
resonance and attenuation 共振与衰减
synergism and attenuation 减毒增效作用
Build target acoustic signal's transmission and attenuation math model.
建立了目标噪声信号传播和衰减的数学模型。
Then, the influences of some parameters on phase speed and attenuation are analyzed.
给出了圆柱管的一些参数对相速度和衰减的影响。
The thesis includes velocity structure tomography and attenuation structure tomography.
本论文包括速度结构层析成像和衰减结构层析成像。
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