名词
中文翻译：电话频率中继器
同义词：
['repeater', 'amplifier例句：1. The telephone frequency repeater is used to amplify the weak signals from the phone line.（电话频率中继器用于放大电话线路上的弱信号。）']
例句：
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1. The telephone frequency repeater is used to amplify the weak signals from the phone line.
电话频率中继器用于放大电话线路上的弱信号。
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2.The engineers installed the telephone frequency repeater in the basement to improve signal strength.
工程师们在地下室安装了电话频率中继器，以提高信号强度。
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3. The repeater was designed to handle multiple channels and provide reliable communication over long distances.
该中继器被设计用来处理多个频道，并确保在长距离上提供可靠的通信。