 |
| interference filter: 47 phrases in 20 subjects |
| Antennas and waveguides | 1 |
| Astronautics | 4 |
| Astronomy | 3 |
| Aviation | 3 |
| Electrical engineering | 1 |
| Electronics | 5 |
| Makarov | 1 |
| Mass media | 1 |
| Medical appliances | 1 |
| Metrology | 1 |
| Microscopy | 1 |
| Nanotechnology | 4 |
| Navigation | 1 |
| Optics branch of physics | 1 |
| Physics | 3 |
| Radio | 1 |
| Sakhalin | 1 |
| Technology | 11 |
| Telecommunications | 2 |
| Transport | 1 |