audio frequency terminating set

例句：

1. 1.The audio frequency terminating set is used to limit the transmission of audio signals.
   音频频率终止器用于限制音频信号的传输。
2. 2. The audio frequency terminating set was designed to improve the sound quality of the recording.
   音频频率终止器被设计用来提高录音的声音质量。
3. 3. The audio frequency terminating set is essential for maintaining the stability of the audio signal.
   音频频率终止器对于保持音频信号的稳定性至关重要。