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vedação : 128 phrases in 18 subjects |
| Agriculture | 7 |
| Chemistry | 7 |
| Coal | 8 |
| Communications | 1 |
| Construction | 4 |
| Earth sciences | 17 |
| Electronics | 11 |
| Environment | 3 |
| General | 2 |
| Health care | 1 |
| Industry | 18 |
| Materials science | 3 |
| Mechanic engineering | 24 |
| Metallurgy | 3 |
| Natural sciences | 2 |
| Patents | 1 |
| Radiobiology | 1 |
| Transport | 15 |
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