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|
back scattering : 101 phrase in 22 subjects |
| Aerohydrodynamics | 1 |
| Air defense | 1 |
| Chemistry | 1 |
| Construction | 2 |
| Electrochemistry | 1 |
| Electronics | 2 |
| General | 1 |
| Geophysics | 2 |
| Information technology | 1 |
| Makarov | 16 |
| Mass media | 10 |
| Medical appliances | 1 |
| Metallurgy | 2 |
| Nuclear physics | 6 |
| Physics | 3 |
| Polymers | 1 |
| Radiation | 25 |
| Radioengineering | 2 |
| Radiography | 13 |
| Radiolocation | 3 |
| Road works | 1 |
| Technology | 6 |