nappe d'eau: 46 phrases in 12 subjects |
Food industry | 1 |
Forestry | 2 |
Geology | 12 |
Hydraulic engineering | 7 |
Hydrography | 1 |
Hygiene | 1 |
Meteorology | 2 |
Mining | 6 |
Natural resourses and wildlife conservation | 9 |
Oil and gas technology | 2 |
Technology | 1 |
United Nations | 2 |