радиационная защита: 35 phrases in 10 subjects |
Astronautics | 2 |
Aviation | 1 |
Medical | 1 |
Medical appliances | 1 |
Military | 3 |
Name of organization | 4 |
Natural resourses and wildlife conservation | 1 |
Nuclear and fusion power | 1 |
Nuclear physics | 20 |
Technology | 1 |