 |
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| search operation (Notburga) | |||
| |||
| search activities | |||
| pathfinder missions (Leonid Dzhepko) | |||
| поисковая операция: 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 |