 |
| |||
| hard coal; pit coal | |||
| coal | |||
| carboniferous formation; coal-bearing formation; coal-formation; fossil charcoal; mineral coal | |||
|
carbone fossile : 17 phrases in 8 subjects |
| Bioenergy | 1 |
| Chemistry | 2 |
| Coal | 3 |
| Energy industry | 1 |
| Food service and catering | 1 |
| Industry | 2 |
| Life sciences | 2 |
| Metallurgy | 5 |