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сигнал о приёме сообщения |
message alert : 24 phrases in 12 subjects |
Automated equipment | 4 |
Aviation | 1 |
Ecology | 2 |
Information technology | 3 |
Mass media | 1 |
Microsoft | 1 |
Military | 5 |
Mobile and cellular communications | 1 |
Programming | 1 |
Technology | 1 |
Telecommunications | 3 |
Transport | 1 |