| |||
| гидравлический расчёт трубопровода | |||
|
hydraulics of a pipeline system : 1 phrase in 1 subject |
| Firefighting and fire-control systems | 1 |
| |||
| гидравлический расчёт трубопровода | |||
|
hydraulics of a pipeline system : 1 phrase in 1 subject |
| Firefighting and fire-control systems | 1 |