| |||
| смесевое твёрдое ракетное топливо | |||
|
Mixed-Propellant : 5 phrases in 2 subjects |
| Astronautics | 4 |
| Firefighting and fire-control systems | 1 |
| |||
| смесевое твёрдое ракетное топливо | |||
|
Mixed-Propellant : 5 phrases in 2 subjects |
| Astronautics | 4 |
| Firefighting and fire-control systems | 1 |