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степень материала : 22 phrases in 13 subjects |
| Building materials | 5 |
| Caspian | 1 |
| Cement | 1 |
| Construction | 1 |
| Education | 1 |
| Firefighting and fire-control systems | 4 |
| General | 3 |
| Geology | 1 |
| Makarov | 1 |
| Military | 1 |
| Oil / petroleum | 1 |
| Perfume | 1 |
| Power system protection | 1 |
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