 |
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| radio communication relay system (Alex_Odeychuk) | |||
| система ретрансляции связи: 4 phrases in 4 subjects |
| Astronautics | 1 |
| Communications | 1 |
| Mass media | 1 |
| Telecommunications | 1 |
|
| |||
| radio communication relay system (Alex_Odeychuk) | |||
| система ретрансляции связи: 4 phrases in 4 subjects |
| Astronautics | 1 |
| Communications | 1 |
| Mass media | 1 |
| Telecommunications | 1 |