 |
|
helical-scan : 27 phrases in 15 subjects |
| Astronautics | 1 |
| Aviation | 1 |
| Computers | 1 |
| Electronics | 1 |
| Geophysics | 1 |
| Information technology | 1 |
| Makarov | 2 |
| Mass media | 3 |
| Medical | 1 |
| Nuclear and fusion power | 1 |
| Radioengineering | 5 |
| Space | 2 |
| Technology | 4 |
| Telecommunications | 1 |
| Television | 2 |