 |
| |||
| ecometria f | |||
|
echo ranging : 12 phrases in 5 subjects |
| Acoustics | 1 |
| Agriculture | 1 |
| Communications | 6 |
| Electronics | 1 |
| Fish farming pisciculture | 3 |
|
| |||
| ecometria f | |||
|
echo ranging : 12 phrases in 5 subjects |
| Acoustics | 1 |
| Agriculture | 1 |
| Communications | 6 |
| Electronics | 1 |
| Fish farming pisciculture | 3 |