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visual indicator : 66 phrases in 17 subjects |
Airports and air traffic control | 2 | Electronics | 3 | Polymers | 1 |
Architecture | 1 | Makarov | 1 | Radioengineering | 1 |
Aviation | 16 | Metallurgy | 2 | Rail transport | 1 |
Aviation medicine | 1 | Meteorology | 3 | Technology | 15 |
Caspian | 1 | Military | 14 | Telecommunications | 2 |
Electrical engineering | 1 | Nanotechnology | 1 |