 |
| |||
| research engineering | |||
| техника научных исследований: 6 phrases in 5 subjects |
| Astronautics | 2 |
| Ecology | 1 |
| Technology | 1 |
| Telecommunications | 1 |
| Weapons of mass destruction | 1 |
|
| |||
| research engineering | |||
| техника научных исследований: 6 phrases in 5 subjects |
| Astronautics | 2 |
| Ecology | 1 |
| Technology | 1 |
| Telecommunications | 1 |
| Weapons of mass destruction | 1 |