 |
| радиационная обстановка: 46 phrases in 12 subjects |
| Astronautics | 2 |
| Ecology | 3 |
| Electronics | 1 |
| Energy industry | 6 |
| Foreign affairs | 2 |
| Military | 18 |
| Nautical | 1 |
| Nuclear and fusion power | 1 |
| Nuclear physics | 4 |
| Occupational health & safety | 6 |
| Security systems | 1 |
| Technology | 1 |