名词
中文翻译：频率偏移器同义词
同义词：
['frequency modulator', 'frequency-shifting device']
例句：
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1. The frequency shifter is used to adjust the frequency of the signal.
频率偏移器用于调整信号的频率。
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2. The frequency shifter was designed to improve the accuracy of the measurement.
频率偏移器被设计用来提高测量的准确性。
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3. The frequency shifter is essential for maintaining the stability of the communication system.
频率偏移器对于保持通信系统的稳定至关重要。