 |
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| modification de la fréquence | |||
| variation de fréquence | |||
| changement de fréquence | |||
| изменение частоты: 29 phrases in 10 subjects |
| Astronautics | 2 |
| Automated equipment | 4 |
| Aviation | 5 |
| Computers | 2 |
| Electronics | 4 |
| Information technology | 1 |
| Mechanic engineering | 1 |
| Medical | 3 |
| Medical appliances | 1 |
| Radio | 6 |