счётчик α- частиц : 52 phrases in 12 subjects |
Astronautics | 5 |
Chemistry | 2 |
Hydraulic engineering | 1 |
Medical appliances | 2 |
Metallurgy | 3 |
Meteorology | 1 |
Mining | 1 |
Natural resourses and wildlife conservation | 4 |
Physics | 2 |
Radio | 1 |
Technology | 5 |
Радиоактивное излучение | 25 |