 |
| compressibilité: 81 phrases in 19 subjects |
| Aerodynamics | 1 |
| Analytical chemistry | 1 |
| Astronautics | 3 |
| Aviation | 14 |
| Chemistry | 7 |
| Construction | 9 |
| Forestry | 2 |
| Geology | 2 |
| Hydraulic engineering | 10 |
| Medical appliances | 1 |
| Metallurgy | 3 |
| Meteorology | 1 |
| Mining | 1 |
| Natural resourses and wildlife conservation | 2 |
| Oil and gas technology | 4 |
| Physics | 3 |
| Technology | 14 |
| Trucks/Lorries | 2 |
| Welding | 1 |