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search activities | |||
pathfinder missions (Leonid Dzhepko) | |||
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search operation (Notburga) |
поисковые операции : 69 phrases in 10 subjects |
Astronautics | 4 |
Aviation | 6 |
Computers | 1 |
General | 7 |
Infrared technology | 1 |
Military | 44 |
NATO | 1 |
Nautical | 1 |
Security systems | 3 |
Torpedoes | 1 |