 |
| |||
| group frequency (в X-спектре) | |||
| baseband frequency; group frequency; train frequency; wave-train frequency | |||
| cell frequency; class frequency | |||
| групповая частота: 21 phrases, 7 sujets |
| Astronautique | 1 |
| Communications | 1 |
| Électronique | 3 |
| Mathématiques | 2 |
| Médias de masse | 8 |
| Radio | 1 |
| Technologie | 5 |