 |
| |||
| absorption ionosphérique normale; absorption normale | |||
| standard absorption: 4 phrases in 2 subjects |
| Technology | 3 |
| Радиоактивное излучение | 1 |
|
| |||
| absorption ionosphérique normale; absorption normale | |||
| standard absorption: 4 phrases in 2 subjects |
| Technology | 3 |
| Радиоактивное излучение | 1 |