 |
| |||
| высокочастотное телеграфирование; надтональное телеграфирование | |||
| high-frequency telegraphy: 8 phrases in 5 subjects |
| Electronics | 1 |
| Mass media | 1 |
| Rail transport | 1 |
| Technology | 2 |
| Telecommunications | 3 |
|
| |||
| высокочастотное телеграфирование; надтональное телеграфирование | |||
| high-frequency telegraphy: 8 phrases in 5 subjects |
| Electronics | 1 |
| Mass media | 1 |
| Rail transport | 1 |
| Technology | 2 |
| Telecommunications | 3 |