 |
| |||
| Wasserstandsobservation f | |||
| |||
| Wasserstand-Observation m | |||
| Wasserstandsbeobachtung f | |||
| наблюдения за уровнями воды: 14 phrases in 8 subjects |
| Geology | 1 |
| Hydrology | 4 |
| Metrology | 1 |
| Mining | 4 |
| Natural resourses and wildlife conservation | 1 |
| Nautical | 1 |
| Navy | 1 |
| Water supply | 1 |