 |
| |||
| bottom engine; first-stage engine | |||
| first stage engine (составной ракеты); first-stage motor (составной ракеты) | |||
| двигатель первой ступени: 15 phrases in 5 subjects |
| Aerohydrodynamics | 1 |
| Artillery | 1 |
| Astronautics | 9 |
| General | 1 |
| Military | 3 |
|
| |||
| bottom engine; first-stage engine | |||
| first stage engine (составной ракеты); first-stage motor (составной ракеты) | |||
| двигатель первой ступени: 15 phrases in 5 subjects |
| Aerohydrodynamics | 1 |
| Artillery | 1 |
| Astronautics | 9 |
| General | 1 |
| Military | 3 |