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plombage : 30 phrases in 9 subjects |
| Chemistry | 1 |
| Coal | 1 |
| Finances | 1 |
| Health care | 1 |
| Life sciences | 13 |
| Mechanic engineering | 2 |
| Medical | 9 |
| Metallurgy | 1 |
| Natural sciences | 1 |
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