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geotermisk | energi
| Energi | |
| energ.ind. | Energie; OTO-acties |
| energi | |
| environ. | energie |
| geotermisk: 60 phrases in 7 subjects |
| Earth sciences | 7 |
| Economy | 1 |
| Electronics | 21 |
| Energy industry | 12 |
| Environment | 1 |
| General | 2 |
| Life sciences | 16 |