attenuation oscillasion impulse

例句：

1. 1.The signal strength is attenuating as we move further away from the transmitter.
   随着我们远离发射器，信号强度正在减弱。
2. 2. The power of the sun's rays is attenuated by the Earth's atmosphere.
   太阳光线的功率被地球大气层所衰减。
3. 3.The rate of attenuation depends on the distance between the source and the receiver.
   衰减率取决于源和接收器之间的距离。