名词
中文翻译：Unknown
同义词：
['mid-frequency telegraphy', 'medium-frequency teletype', 'medium-frequency teleprinter']
例句：
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1. Themedium-frequency telegraphy system is used to transmit signals over long distances.
中频电报系统用于在长距离上传输信号。
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2. The medium-frequency telegraphy equipment was installed in the remote area for emergency communication.
中频电报设备被安装在偏远地区以进行紧急通信。
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3.The medium-frequency telegraphy method has been widely adopted in modern communication systems.
中频电报方法已被广泛应用于现代通信系统中。