名词
中文翻译：音频频率变换器
同义词：
['audio frequency converter', 'audio frequency modulator']
例句：
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1. The audio frequency transformer is used to amplify the sound signal.
音频频率变换器用于放大声音信号。
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2. The audio frequency transformer was designed to improve the quality of audio signals.
音频频率变换器被设计用来提高音频信号的质量。
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3. The audio frequency transformer is crucial for the transmission of high-definition audio signals.
音频频率变换器对于传输高清音频信号至关重要。