 |
| |||
| normally occurring radioactive material (igisheva); naturally occurring radioactive material (igisheva) | |||
| естественное радиоактивное вещество: 5 phrases, 3 sujets |
| Champs de pétrole | 1 |
| Chimie nucléaire | 3 |
| Sakhaline | 1 |
|
| |||
| normally occurring radioactive material (igisheva); naturally occurring radioactive material (igisheva) | |||
| естественное радиоактивное вещество: 5 phrases, 3 sujets |
| Champs de pétrole | 1 |
| Chimie nucléaire | 3 |
| Sakhaline | 1 |