sound carrier attenuator

例句：

1. 1. The soundcarrier attenuator isused to reduce the noise level ina noisy environment.
   声载衰减器用于在嘈杂环境中降低噪音水平。
2. 2. Thesound carrier attenuator was designedto improve the quality of audio signals.
   声载衰减器被设计用来提高音频信号的质量。
3. 3. The sound carrier attenuatoris an essential component of a communication system.
   声载衰减器是通信系统的一个必不可少的组成部分。