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fontes : 503 phrases in 47 subjects |
| Agriculture | 1 |
| Antennas and waveguides | 7 |
| Brazil | 49 |
| Chemistry | 2 |
| Communications | 23 |
| Data processing | 1 |
| Earth sciences | 39 |
| Economy | 4 |
| Electric machinery | 3 |
| Electrical engineering | 5 |
| Electronics | 115 |
| Energy industry | 16 |
| Environment | 73 |
| Finances | 10 |
| Fish farming pisciculture | 1 |
| Forestry | 1 |
| General | 8 |
| Health care | 12 |
| Industry | 1 |
| Information technology | 48 |
| Isolation | 1 |
| Law | 2 |
| Life sciences | 10 |
| Lighting other than cinema | 4 |
| Marketing | 1 |
| Materials science | 1 |
| Mechanic engineering | 3 |
| Medical | 2 |
| Metallurgy | 2 |
| Microsoft | 6 |
| Municipal planning | 1 |
| Natural resourses and wildlife conservation | 1 |
| Natural sciences | 7 |
| Nuclear and fusion power | 1 |
| Nuclear physics | 3 |
| Obsolete / dated | 1 |
| Patents | 5 |
| Physical sciences | 1 |
| Power electronics | 4 |
| Power system protection | 1 |
| Research and development | 1 |
| Social science | 1 |
| Statistics | 2 |
| Taxes | 5 |
| Technology | 3 |
| Transport | 12 |
| Work flow | 3 |
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