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colunas : 331 phrases in 29 subjects |
| Agriculture | 13 |
| Art | 1 |
| Brazil | 16 |
| Chemistry | 41 |
| Coal | 13 |
| Communications | 2 |
| Construction | 4 |
| Earth sciences | 25 |
| Electronics | 3 |
| Energy industry | 4 |
| Environment | 18 |
| Finances | 1 |
| Food industry | 1 |
| General | 9 |
| Health care | 2 |
| Industry | 6 |
| Information technology | 54 |
| Law | 1 |
| Life sciences | 1 |
| Materials science | 4 |
| Mechanic engineering | 29 |
| Medical | 33 |
| Metallurgy | 7 |
| Microsoft | 8 |
| Municipal planning | 1 |
| Natural sciences | 7 |
| Scientific | 1 |
| Technology | 8 |
| Transport | 18 |
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