receiver amplifier

例句：

1. 1.The receiver amplifier is responsible for converting the audio signal into an electrical signal.
   接收放大器负责将音频信号转换为电信号。
2. 2.The amplifier was designed to improve the sound quality of the music.
   放大器被设计用来提高音乐的音质。
3. 3.The receiver amplifier is essential for transmitting high-quality audio signals over long distances.
   接收放大器对于在长距离上传输高质量音频信号是必需的。