 |
| |||
| pool and transverse fish pass | |||
| pool fishway; pool-and-overfall fishway | |||
| pool and jet fishway | |||
| orifice fish ladder | |||
| прудковый рыбоход: 14 phrases in 4 subjects |
| Fish farming pisciculture | 5 |
| Hydraulic engineering | 3 |
| Makarov | 2 |
| Technology | 4 |
|
| |||
| pool and transverse fish pass | |||
| pool fishway; pool-and-overfall fishway | |||
| pool and jet fishway | |||
| orifice fish ladder | |||
| прудковый рыбоход: 14 phrases in 4 subjects |
| Fish farming pisciculture | 5 |
| Hydraulic engineering | 3 |
| Makarov | 2 |
| Technology | 4 |