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dispositivo : 2220 phrases in 66 subjects |
| Agriculture | 124 |
| Antennas and waveguides | 1 |
| Astronautics | 3 |
| Automatic control | 2 |
| Cables and cable production | 1 |
| Chemistry | 37 |
| Coal | 8 |
| Commerce | 2 |
| Communications | 78 |
| Construction | 9 |
| Cultural studies | 13 |
| Earth sciences | 61 |
| Economy | 7 |
| Electric machinery | 2 |
| Electric traction | 5 |
| Electrical engineering | 38 |
| Electricity generation | 2 |
| Electronics | 291 |
| Energy industry | 11 |
| Environment | 15 |
| Finances | 10 |
| Fish farming pisciculture | 8 |
| Forestry | 4 |
| General | 117 |
| Health care | 25 |
| Hobbies and pastimes | 1 |
| Human rights activism | 4 |
| Industry | 80 |
| Information technology | 119 |
| International Monetary Fund | 1 |
| Isolation | 1 |
| Labor law | 20 |
| Law | 4 |
| Life sciences | 13 |
| Lighting other than cinema | 1 |
| Magnetics | 6 |
| Materials science | 41 |
| Mathematics | 1 |
| Mechanic engineering | 289 |
| Medical | 32 |
| Metallurgy | 40 |
| Microsoft | 198 |
| Municipal planning | 14 |
| Natural resourses and wildlife conservation | 2 |
| Natural sciences | 22 |
| Nuclear physics | 5 |
| Oil / petroleum | 5 |
| Patents | 27 |
| Pharmacy and pharmacology | 2 |
| Physical sciences | 4 |
| Power lines | 2 |
| Power system protection | 3 |
| Radio | 4 |
| Rail transport | 8 |
| Semiconductors | 12 |
| Social science | 3 |
| Statistics | 5 |
| Superconductivity | 2 |
| Technology | 103 |
| Telecommunications | 1 |
| Telephony | 4 |
| Thermal Energy | 2 |
| Transformers | 6 |
| Transport | 251 |
| Vacuum tubes | 3 |
| Welding | 5 |
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