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амплитудно -частотная характеристика : 218 phrases in 24 subjects |
| Acoustics | 3 |
| Automated equipment | 3 |
| Automatic control | 4 |
| Automobiles | 8 |
| Aviation | 12 |
| Electrical engineering | 5 |
| Electronics | 61 |
| Geology | 1 |
| Gyroscopes | 1 |
| Hi-Fi | 1 |
| Information technology | 3 |
| Makarov | 23 |
| Mass media | 42 |
| Metrology | 1 |
| Military | 1 |
| Nanotechnology | 1 |
| Nautical | 6 |
| Non-destructive testing | 2 |
| Oil / petroleum | 1 |
| Radio | 2 |
| Soviet | 1 |
| Space | 3 |
| Technology | 31 |
| Telecommunications | 2 |