 |
| |||
| fire warning and evacuation system (Elina Semykina) | |||
| система оповещения и эвакуации людей при пожаре: 5 phrases in 2 subjects |
| Firefighting and fire-control systems | 4 |
| General | 1 |
|
| |||
| fire warning and evacuation system (Elina Semykina) | |||
| система оповещения и эвакуации людей при пожаре: 5 phrases in 2 subjects |
| Firefighting and fire-control systems | 4 |
| General | 1 |