unusable
| fuel
| unusable | |
| transp. | inutilisable |
| Fuel | |
| polit. | Combustible |
| fuel | |
| chem. | mise à feu; chauffage |
| econ. | combustible |
| energ.ind. | carburant |
| environ. | combustible |
| patents. | combustibles |
| UN econ. | mazout |
| fuels | |
| environ. | carburants |
| forestr. | carburant |
| |||
| inutilisable | |||
|
unusable : 6 phrases in 3 subjects |
| Mechanic engineering | 1 |
| Technology | 1 |
| Transport | 4 |