attenuation coefficient

例句：

1. 1. The attenuation coefficient of the signal is a critical factor in determining its quality.
   信号的衰减系数是决定其质量的关键因素。
2. 2.In radio engineering, the attenuation coefficient is used to measure the strength of the transmitted signal.
   在无线电工程中，衰减系数用于测量传输信号的强度。
3. 3. The attenuation coefficient of light waves varies with the distance between the source and the observer.
   光波的衰减系数随源与观察者之间的距离变化而变化。