| |||
| рельеф дна | |||
| изобата | |||
|
depth-contour : 10 phrases in 6 subjects |
| Electronics | 1 |
| Geophysics | 3 |
| Nautical | 1 |
| Navigation | 1 |
| Technology | 3 |
| Water resources | 1 |
| |||
| рельеф дна | |||
| изобата | |||
|
depth-contour : 10 phrases in 6 subjects |
| Electronics | 1 |
| Geophysics | 3 |
| Nautical | 1 |
| Navigation | 1 |
| Technology | 3 |
| Water resources | 1 |