名词短语
中文翻译：语音频率电报设备
同义词：
['voice frequency telegraph equipment', 'voice frequency telecommunications equipment']
例句：
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1. This new model of voice frequency telegraphy equipment has greatly improved the efficiency of our company's communication system.
这款新型的语音频率电报设备大大提高了我们公司通讯系统的工作效率。
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2. The voice frequency telegraphy equipment was used to transmit signals over long distances with high reliability.
语音频率电报设备被用来在远距离上以高可靠性传输信号。
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3. The engineers are working on developing a more advanced version of voice frequency telegraphy equipment to meet the increasing demand for high-speed communication services.
工程师们正在努力开发更先进的语音频率电报设备版本，以满足对高速通信服务日益增长的需求。