 |
| |||
| nuclear reactor powered spacecraft; nuclear-fission spacecraft; nuclear reactor-powered spacecraft; fission spacecraft | |||
| космический аппарат с ядерным ракетным двигателем: 7 phrases in 2 subjects |
| Astronautics | 2 |
| Technology | 5 |
|
| |||
| nuclear reactor powered spacecraft; nuclear-fission spacecraft; nuclear reactor-powered spacecraft; fission spacecraft | |||
| космический аппарат с ядерным ракетным двигателем: 7 phrases in 2 subjects |
| Astronautics | 2 |
| Technology | 5 |