прямоугольный импульс: 36 phrases in 9 subjects |
Automated equipment | 3 |
Electronics | 10 |
Medical appliances | 2 |
Microelectronics | 1 |
Optics branch of physics | 1 |
Photographical sound recording | 2 |
Quantum electronics | 2 |
Radio | 12 |
Радиоактивное излучение | 3 |