名词
中文翻译：信号调制器
同义词：
['modulator', 'modulatory', 'modulation例句：1. The signal modulator is responsible for adjusting the frequency of the radio signal.（信号调制器负责调整无线电信号的频率。）2. The modulator is used to convert digital signals into analog signals.（调制器用于将数字信号转换为模拟信号。）']
例句：
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1. The signal modulator is responsible for adjusting the frequency of the radio signal.
信号调制器负责调整无线电信号的频率。
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2. The modulator is used to convert digital signals into analog signals.
调制器用于将数字信号转换为模拟信号。
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3.The modulator was designed to improve the quality of audio signals.
调制器被设计用来提高音频信号的质量。