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Untergrund : 120 phrases in 31 subjects |
| Agriculture | 5 |
| Astronomy | 2 |
| Aviation | 1 |
| Building materials | 1 |
| Chemistry | 1 |
| Construction | 11 |
| Forestry | 1 |
| General | 7 |
| Geology | 9 |
| Geophysics | 4 |
| High energy physics | 2 |
| Hydrology | 3 |
| Metallurgy | 1 |
| Military | 6 |
| Mining | 4 |
| Missiles | 4 |
| Natural resourses and wildlife conservation | 1 |
| Nuclear and fusion power | 3 |
| Nuclear physics | 4 |
| Oil / petroleum | 1 |
| Optics branch of physics | 1 |
| Plastics | 1 |
| Politics | 1 |
| Polymers | 3 |
| Psychology | 1 |
| Quantum electronics | 5 |
| Radiation | 11 |
| Rail transport | 7 |
| Road works | 8 |
| Technology | 4 |
| Water supply | 7 |