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| негласные оперативно-розыскные мероприятия (4uzhoj) | |||
| intelligence surveillance: 73 phrases in 11 subjects |
| Astronautics | 3 |
| Aviation | 1 |
| General | 1 |
| Intelligence and security services | 2 |
| Law | 1 |
| Law enforcement | 2 |
| Medical | 1 |
| Military | 51 |
| NATO | 1 |
| Technology | 1 |
| United States | 9 |