 |
| secondary radiation: 30 phrases in 13 subjects |
| Analytical chemistry | 1 |
| Astronautics | 2 |
| Chemistry | 1 |
| Electronics | 1 |
| High energy physics | 1 |
| Mass media | 1 |
| Medical | 1 |
| Medical appliances | 1 |
| Military | 1 |
| Nanotechnology | 3 |
| Physics | 1 |
| Radiolocation | 11 |
| Радиоактивное излучение | 5 |