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data retrieval system |
система поиска данных : 28 phrases in 11 subjects |
Astronautics | 1 |
Automated equipment | 1 |
Electronics | 2 |
Finances | 1 |
Firefighting and fire-control systems | 1 |
General | 2 |
Mass media | 4 |
Mechanics | 1 |
Military | 9 |
Programming | 2 |
Technology | 4 |