спектр излучения: 55 phrases in 12 subjects |
Analytical chemistry | 1 |
Astronautics | 11 |
Chemistry | 5 |
Electronics | 3 |
Fishery fishing industry | 2 |
Mechanic engineering | 1 |
Medical appliances | 1 |
Metallurgy | 7 |
Physics | 5 |
Radio | 7 |
Technology | 11 |
Радиоактивное излучение | 1 |