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| Phasenmodulation f | |||
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Modulation de phase : 68 phrases in 10 subjects |
| Automated equipment | 1 |
| Communications | 9 |
| Computers | 2 |
| Electronics | 41 |
| Information technology | 10 |
| Natural resourses and wildlife conservation | 1 |
| Radio | 1 |
| Technology | 1 |
| Telegraphy | 1 |
| Transport | 1 |