primary navigation
| guidance and control system
| primary navigation | |
| astronaut. | навигация по маршруту |
| guidance and control system | |
| astronaut. | система наведения и управления |
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| навигация по маршруту | |||
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primary navigation : 14 phrases in 3 subjects |
| Astronautics | 4 |
| Military | 7 |
| Technology | 3 |