 |
| warning device: 75 phrases in 27 subjects |
| Apollo-Soyuz | 1 |
| Artillery | 1 |
| Astronautics | 1 |
| Automated equipment | 4 |
| Automobiles | 1 |
| Aviation | 6 |
| Aviation medicine | 2 |
| British usage, not spelling | 1 |
| Construction | 4 |
| Electronics | 1 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 1 |
| General | 1 |
| Information technology | 1 |
| Lasers | 3 |
| Medical | 1 |
| Military | 14 |
| Natural resourses and wildlife conservation | 2 |
| Nautical | 2 |
| Occupational health & safety | 1 |
| Quality control and standards | 3 |
| Refrigeration | 1 |
| Road works | 2 |
| Security systems | 9 |
| Signalling | 1 |
| Technology | 7 |
| Transport | 3 |