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heden : 20 phrases in 11 subjects |
| Chemistry | 1 |
| Communications | 2 |
| Earth sciences | 1 |
| Electronics | 7 |
| Industry | 1 |
| Information technology | 1 |
| Life sciences | 1 |
| Materials science | 1 |
| Mechanic engineering | 3 |
| Metallurgy | 1 |
| Natural sciences | 1 |
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