| |||
| система оповещения и эвакуации людей при пожаре (Elina Semykina) | |||
|
fire warning and evacuation system : 3 phrases in 1 subject |
| Firefighting and fire-control systems | 3 |
| |||
| система оповещения и эвакуации людей при пожаре (Elina Semykina) | |||
|
fire warning and evacuation system : 3 phrases in 1 subject |
| Firefighting and fire-control systems | 3 |