attenuation limit

例句：

1. 1. The signal strengthis limited by the attenuationof the radio wave.
   信号强度受到无线电波衰减的限制。
2. 2. The attenuationlimit for this frequency band is 10 dB.
   这个频率带的衰减限制是10分贝。
3. 3. Theattenuation limit is set to preventinterference between different systems.
   衰减限制被设定为防止不同系统之间的干扰。