名词
中文翻译：线重复器
同义词：
['repeater', 'line repeater', 'repeater unit']
例句：
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1.The line repeater is used to extend the range of a radio signal.
线重复器用于扩展无线电信号的范围。
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2. The line repeater was installed to improve the signal quality in the remote area.
线重复器被安装以改善偏远地区的信号质量。
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3.The line repeater is essential for maintaining communication in long-distance lines.
线重复器对于维持长距离线路中的通信至关重要。