спектральная плотность мощности: 33 phrases in 12 subjects |
Astronautics | 3 |
Aviation | 1 |
Electrical engineering | 2 |
Electronics | 1 |
Household appliances | 1 |
Makarov | 2 |
Mass media | 7 |
Nanotechnology | 1 |
Physics | 2 |
Radio | 1 |
Technology | 7 |
Telecommunications | 5 |