|
warning alarm : 28 phrases in 14 subjects |
| Aviation | 3 |
| Caspian | 1 |
| Ecology | 1 |
| Energy industry | 1 |
| Firefighting and fire-control systems | 2 |
| General | 1 |
| Geology | 1 |
| Makarov | 2 |
| Military | 2 |
| Oil / petroleum | 1 |
| Security systems | 2 |
| Technology | 6 |
| Telecommunications | 2 |
| Weapons of mass destruction | 3 |