名词
中文翻译：无线电安全信号
同义词：
['radio signal', 'radio frequency', 'radio wave']
例句：
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1. The police useda radio safety signal to guide the searchers.
警方使用无线电安全信号来引导搜救人员。
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2. The engineers used a radio safety signal to alert the firefighters.
工程师们使用无线电安全信号来通知消防员。
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3.The transmission of the radio safety signal was interrupted by interference from nearby buildings.
无线电安全信号的传输被附近的建筑物干扰了。