名词
中文翻译：信号替换器同义词
同义词：
['signal alterer', 'signal modulator']
例句：
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1. The signal replacer was used to replace the old radio equipment.
信号替换器被用来替换旧的无线电设备。
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2. The signal replacer helped to improve the communication quality.
信号替换器有助于提高通信质量。
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3. The signal replacer was designed to work with new technology.
信号替换器被设计来与新技术配合使用。