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blind transmission
航空 передавання "бліндом" (приклад вживання: https://zakon.rada.gov.ua/rada/show/z0844-04/ed20121001#Text bojana)
 英语 词库
blind transmission
航空, 加拿大 A transmission from one station to another in circumstances where two-way communication cannot be established but where it is believed that the called station is able to receive the transmission