名词
中文翻译：无人值守的中继站
同义词：
['unmanned relay station', 'unattended relay point']
例句：
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1. The unattended relay station is a critical component of the communication network.
这个无人值守的中继站是通信网络的关键组成部分。
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2. The unattended relay station was designed to withstand extreme weather conditions.
这个无人值守的中继站被设计成能够承受极端天气条件。
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3.The unattended relay station was used to transmit signals over long distances without human intervention.
这个无人值守的中继站被用来在没有人工干预的情况下传输信号，跨越长距离。