 |
| back radiation: 18 phrases in 11 subjects |
| Astronautics | 3 |
| Aviation | 1 |
| Drilling | 1 |
| Electrochemistry | 1 |
| Genetics | 1 |
| Makarov | 5 |
| Medical | 1 |
| Metallurgy | 1 |
| Navigation | 2 |
| Nuclear and fusion power | 1 |
| Oceanography & oceanology | 1 |
|
| back radiation: 18 phrases in 11 subjects |
| Astronautics | 3 |
| Aviation | 1 |
| Drilling | 1 |
| Electrochemistry | 1 |
| Genetics | 1 |
| Makarov | 5 |
| Medical | 1 |
| Metallurgy | 1 |
| Navigation | 2 |
| Nuclear and fusion power | 1 |
| Oceanography & oceanology | 1 |