 |
|
fire detector : 51 phrases in 25 subjects |
| Air defense | 2 |
| Architecture | 2 |
| Astronautics | 2 |
| Automated equipment | 1 |
| Aviation | 3 |
| Caspian | 1 |
| Construction | 1 |
| Ecology | 2 |
| Electronics | 1 |
| Energy industry | 2 |
| Firefighting and fire-control systems | 8 |
| Geology | 1 |
| Law enforcement | 1 |
| Makarov | 2 |
| Nanotechnology | 1 |
| Occupational health & safety | 5 |
| Oil and gas | 2 |
| Production | 1 |
| Radioengineering | 1 |
| Sakhalin | 1 |
| Signalling | 1 |
| Space | 6 |
| Technology | 1 |
| Telecommunications | 2 |
| Weapons of mass destruction | 1 |