名词
中文翻译：空中信号
同义词：
['aerial signal', 'radio signal', 'telecommunication signal']
例句：
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1. The pilot detectedan airborne signal in the distance.
飞行员在远处探测到了一个空中信号。
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2.The aircraft was equipped with a sophisticated airborne signal system.
这架飞机配备了一个先进的空中信号系统。
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3. The military used airborne signals to communicate with their troops in remote areas.
军队使用空中信号与偏远地区的部队进行通信。