 |
| |||
| radiation au niveau naturel; radiation de fond | |||
| rayonnement de fond (marimarina) | |||
| фоновая радиация: 3 phrases in 2 subjects |
| Environment | 1 |
| Natural resourses and wildlife conservation | 2 |
|
| |||
| radiation au niveau naturel; radiation de fond | |||
| rayonnement de fond (marimarina) | |||
| фоновая радиация: 3 phrases in 2 subjects |
| Environment | 1 |
| Natural resourses and wildlife conservation | 2 |