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regeneration : 331 phrases in 41 subjects |
| Armored vehicles | 1 |
| Astronautics | 10 |
| Automated equipment | 11 |
| Automobiles | 1 |
| Aviation | 2 |
| Biology | 1 |
| Chemistry | 29 |
| Cinematography | 1 |
| Computers | 7 |
| Construction | 4 |
| Dentistry | 1 |
| Electronics | 7 |
| Environment | 2 |
| Firefighting and fire-control systems | 1 |
| Food industry | 7 |
| Forestry | 54 |
| General | 1 |
| Geology | 10 |
| Geophysics | 3 |
| Information technology | 14 |
| International Monetary Fund | 1 |
| Logging | 1 |
| Mathematics | 1 |
| Mechanic engineering | 3 |
| Medical | 6 |
| Metallurgy | 6 |
| Meteorology | 5 |
| Mining | 2 |
| Natural resourses and wildlife conservation | 21 |
| Nuclear physics | 21 |
| Oil and gas technology | 9 |
| Packaging | 1 |
| Photography | 1 |
| Physics | 10 |
| Polygraphy | 1 |
| Radiation | 1 |
| Radio | 14 |
| Technology | 49 |
| Textile industry | 6 |
| Trucks/Lorries | 4 |
| United Nations | 1 |