рентгеновская трубка: 209 phrases in 11 subjects |
Antennas and waveguides | 18 |
Chemistry | 5 |
General | 1 |
Medical appliances | 76 |
Metallurgy | 3 |
Natural resourses and wildlife conservation | 2 |
Nuclear physics | 7 |
Physics | 1 |
Radio | 3 |
Technology | 7 |
Радиоактивное излучение | 86 |