 |
| |||
| raffinage du pétrole | |||
| transformation de l'huile | |||
| raffinage du brut | |||
| traitement du pétrole brut | |||
| переработка нефти: 5 phrases in 4 subjects |
| Chemistry | 1 |
| Environment | 1 |
| Oil and gas | 1 |
| Oil and gas technology | 2 |
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