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hidrocarbonetos
| policíclicos
| hidrocarboneto | |
| chem. | angliavandenis |
| econ. | angliavandenilis |
| policíclico | |
| health. | policiklinis |
| |||
| angliavandenis | |||
| angliavandenilis | |||
| |||
| angliavandenilis | |||
| hidrocarbonetos: 21 phrases in 5 subjects |
| Chemistry | 3 |
| Economy | 2 |
| Energy industry | 1 |
| Environment | 13 |
| General | 2 |