名词
中文翻译：关键传递者
同义词：
['keyholder', 'key transmitter例句：1. The key relay system is crucial for the security of our data.（密钥传递系统对我们数据的安全至关重要。）']
例句：
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1. The key relay system is crucial for the security of our data.
密钥传递系统对我们数据的安全至关重要。
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2. The key relay was responsible for transmitting the signal from one end to the other.
密钥传递器负责将信号从一个端传到另一个端。
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3. The key relay was a critical component in the communication system.
密钥传递器是通信系统中的关键组件。