| |||
| spectre de fréquence; spectre des fréquences | |||
| représentation spectrale; spectre m | |||
| spectre de fréquences | |||
|
frequency spectrum : 29 phrases in 9 subjects |
| Automated equipment | 3 |
| Communications | 15 |
| Construction | 1 |
| Earth sciences | 1 |
| Electronics | 4 |
| Information technology | 1 |
| Medical appliances | 1 |
| Natural sciences | 2 |
| Radio | 1 |