名词
中文翻译：脉冲编码调制同义词
同义词：
['Pulse Code Modulation']
例句：
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1. The PCM system is designed to improve the quality of audio signals.
PCM系统旨在提高音频信号的质量。
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2. The engineer used a PCM device to record the sound.
工程师使用PCM设备来录制声音。
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3. The PCM code is used to compress and transmit digital data.
PCM代码用于压缩和传输数字数据。