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join key |
ключ соединения: 19 phrases in 11 subjects |
Communications | 1 |
Construction | 1 |
Firefighting and fire-control systems | 1 |
Information security and data protection | 1 |
Mass media | 3 |
Military | 1 |
Mining | 1 |
Public utilities | 1 |
Security systems | 2 |
Technology | 2 |
Transport | 5 |