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| user channel | |||
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| user channel (oleg.vigodsky) | |||
| канал пользователя: 32 phrases in 8 subjects |
| Communications | 1 |
| Electronics | 5 |
| Information security and data protection | 1 |
| Information technology | 3 |
| Mass media | 16 |
| Programming | 1 |
| Security systems | 2 |
| Telecommunications | 3 |