| |||
| sonar actif; sonar à écoute active | |||
| sonar ultrasonore | |||
|
active sonar : 5 phrases in 4 subjects |
| Earth sciences | 1 |
| Fishery fishing industry | 2 |
| Natural resourses and wildlife conservation | 1 |
| Natural sciences | 1 |
| |||
| sonar actif; sonar à écoute active | |||
| sonar ultrasonore | |||
|
active sonar : 5 phrases in 4 subjects |
| Earth sciences | 1 |
| Fishery fishing industry | 2 |
| Natural resourses and wildlife conservation | 1 |
| Natural sciences | 1 |