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Wirbel : 183 phrases in 25 subjects |
| 1 | |
| Aerodynamics | 47 |
| Anatomy | 1 |
| Artillery | 1 |
| Aviation | 54 |
| Construction | 1 |
| Energy industry | 1 |
| General | 5 |
| Geology | 2 |
| Geophysics | 14 |
| Hydraulics | 1 |
| Informal | 17 |
| Leather | 1 |
| Mathematics | 1 |
| Medical | 4 |
| Medical appliances | 1 |
| Metrology | 4 |
| Missiles | 1 |
| Oil / petroleum | 1 |
| Paleontology | 3 |
| Physics | 1 |
| Shipbuilding | 1 |
| Sports | 15 |
| Technology | 4 |
| Water supply | 1 |