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| делать более утончённым; делать более изящным; совершенствовать; улучшать; нефтепереработка | |||
| 炼化: 77 phrases in 11 subjects |
| Chemistry | 1 |
| Electronics | 1 |
| General | 36 |
| Geology | 1 |
| Metallurgy | 3 |
| Oil / petroleum | 1 |
| Oil and gas | 1 |
| Oil processing plants | 3 |
| Steel production | 2 |
| Technology | 27 |
| Welding | 1 |
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