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BackScatter : 173 phrases in 31 subjects |
| Air defense | 1 |
| Analytical chemistry | 1 |
| Antennas and waveguides | 11 |
| Astronautics | 2 |
| Astrophysics | 1 |
| Automated equipment | 2 |
| Aviation | 6 |
| Construction | 2 |
| Crystallography | 1 |
| Electronics | 17 |
| General | 1 |
| Household appliances | 1 |
| Hydroacoustics | 1 |
| Makarov | 3 |
| Mass media | 2 |
| Measuring instruments | 2 |
| Medical | 2 |
| Medical appliances | 8 |
| Metrology | 2 |
| Military | 20 |
| Nanotechnology | 7 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 1 |
| Nuclear and fusion power | 3 |
| Nuclear physics | 4 |
| Quality control and standards | 2 |
| Quantum electronics | 5 |
| Radiation | 26 |
| Radioengineering | 10 |
| Space | 3 |
| Technology | 25 |