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плата синхронизации (ssn); плата генератора (ssn) |
clock board: 20 phrases in 10 subjects |
Astronautics | 2 |
Cables and cable production | 1 |
Chess | 1 |
Computers | 2 |
Construction | 1 |
Electronics | 2 |
Information technology | 3 |
Mass media | 1 |
Programming | 6 |
Telecommunications | 1 |