 |
| |||
| pool and orifice fishway; orifice fish ladder | |||
| échelle à poissons à bassins successifs: 4 phrases in 2 subjects |
| Agriculture | 1 |
| Fish farming pisciculture | 3 |
|
| |||
| pool and orifice fishway; orifice fish ladder | |||
| échelle à poissons à bassins successifs: 4 phrases in 2 subjects |
| Agriculture | 1 |
| Fish farming pisciculture | 3 |