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time in operation (Alexander Demidov); uptime (Alexander Demidov) | |||
operation time (ssn) |
время функционирования : 8 phrases in 7 subjects |
Astronautics | 1 |
Aviation | 2 |
Aviation medicine | 1 |
Mass media | 1 |
Microelectronics | 1 |
Military | 1 |
Programming | 1 |