名词中文翻译
中文翻译：第一信号系统
同义词：
['first signal', 'first warning system']
例句：
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1.The first signal system is designed to alert the public about emergencies.
第一信号系统旨在紧急情况下通知公众。
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2. The first signal system was introduced to improve communication during disasters.
第一信号系统被引入以提高灾难期间的通信效率。
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3. In the early days of radio broadcasting, the first signal system was crucial for transmitting important information.
在无线电广播初期，第一信号系统对于传输重要信息至关重要。