名词
中文翻译：产品调制解调器
同义词：
['product modulator', 'product demodulator例句：1. The product demodulator is used to convert signals from one frequency band to another.（产品调制解调器用于将信号从一个频带转换到另一个频带。）']
例句：
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1. The product demodulator is used to convert signals from one frequency band to another.
产品调制解调器用于将信号从一个频带转换到另一个频带。
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2. The demodulator was designed to improve the signal-to-noise ratio of the system.
调制解调器被设计来提高系统的信噪比。
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3. The demodulator is responsible for extracting the original signal from the received signal.
调制解调器负责从接收信号中提取原始信号。