名词
中文翻译：Unknown
同义词：
['group transducer', 'group amplifier', 'group receiver', 'group transmitter']
例句：
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1. The group amplifier is used to amplify the signal from the sensors.
群放大器用于放大传感器的信号。
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2. The group amplifier was designed to improve the quality of audio signals.
群放大器被设计用来提高音频信号的质量。
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3. The group amplifier is essential for transmitting high-quality audio signals over long distances.
群放大器对于在长距离上传输高质量音频信号是必要的。