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flashing-light : 90 phrases in 22 subjects |
| Astronautics | 3 |
| Automobiles | 2 |
| Aviation | 1 |
| Cartography | 2 |
| Construction | 1 |
| Electrical engineering | 2 |
| Electronics | 7 |
| Makarov | 3 |
| Maritime law & Law of the Sea | 1 |
| Medical appliances | 2 |
| Military | 9 |
| Nanotechnology | 1 |
| Nautical | 26 |
| Navigation | 7 |
| Oceanography & oceanology | 1 |
| Oil and gas | 1 |
| Radioengineering | 1 |
| Road works | 1 |
| Shipbuilding | 1 |
| Technology | 14 |
| Traffic control | 1 |
| Transport | 3 |