 |
| |||
| exploratory study; concept exploration; feasibility study; precharacteristics study | |||
| precharacteristic study | |||
| предэскизное проектирование: 4 phrases in 3 subjects |
| Apollo-Soyuz | 1 |
| Caspian | 2 |
| Technology | 1 |
|
| |||
| exploratory study; concept exploration; feasibility study; precharacteristics study | |||
| precharacteristic study | |||
| предэскизное проектирование: 4 phrases in 3 subjects |
| Apollo-Soyuz | 1 |
| Caspian | 2 |
| Technology | 1 |