 |
| |||
| operation observation (oleg.vigodsky); service observation (oleg.vigodsky); service observing (oleg.vigodsky) | |||
| наблюдение за обслуживанием: 10 phrases in 2 subjects |
| Astronautics | 1 |
| Telecommunications | 9 |
|
| |||
| operation observation (oleg.vigodsky); service observation (oleg.vigodsky); service observing (oleg.vigodsky) | |||
| наблюдение за обслуживанием: 10 phrases in 2 subjects |
| Astronautics | 1 |
| Telecommunications | 9 |