名词
中文翻译：回放放大器
同义词：
['replay amplifier', 'playback amplifier', 'reproducing amplifier']
例句：
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1.The engineer needs to adjust the playback amplifier settings to optimize the audio quality.
工程师需要调整回放放大器设置，以优化音频质量。
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2. The new music player has a built-in playback amplifier that can handle high-definition audio files.
这款新音乐播放器内置了回放放大器，可以处理高清音频文件。
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3. The sound engineer used a playback amplifier to boost the volume of the recordings during the mixing stage.
声学工程师使用回放放大器在混音阶段提升录音的音量。