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短语

negative contact

强调
一般 отрицательный плюс
电信 отрицательный полюс (батареи питания)
航空 связи нет (типовое сообщение по связи)
航空, 通讯 вас не наблюдаю (i. A term used by pilots to indicate to ATC that (a) previously issued traffic is not in sight. It may be followed by the pilot's request for the controller to provide assistance in avoiding the traffic. It may also mean (b) the pilots were unable to contact ATC on a particular frequency.)
 英语 词库
negative contact
航空 Lack of radar and/ or SIF contact
negative contact
: 17 短语, 5 学科
军队1
技术1
测谎2
编程11
航空2