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nadawanie : 30 phrases in 10 subjects |
| Antennas and waveguides | 2 |
| Communications | 2 |
| General | 1 |
| Law | 4 |
| Politics | 1 |
| Radio | 10 |
| Telecommunications | 4 |
| Telegraphy | 3 |
| Telephony | 2 |
| Vacuum tubes | 1 |
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