multi-amplifier

例句：

1. 1.The multi-amplifier allows for the broadcast of multiple channels simultaneously.
   多放大器允许同时广播多个频道。
2. 2. The engineer used a multi-amplifier to boost the signal strength.
   工程师使用多放大器来增强信号强度。
3. 3. The audiophile loves to use a multi-amplifier to enhance the sound quality of their recordings.
   音频爱好者喜欢使用多放大器来提高他们录音的声音质量。