poussier
| poussier | |
| chem. | polvo de carbón |
| |||
| polvo de carburo | |||
| |||
| polvo de carbón | |||
|
poussier : 8 phrases in 3 subjects |
| Chemistry | 3 |
| Coal | 3 |
| Energy industry | 2 |
| poussier | |
| chem. | polvo de carbón |
| |||
| polvo de carburo | |||
| |||
| polvo de carbón | |||
|
poussier : 8 phrases in 3 subjects |
| Chemistry | 3 |
| Coal | 3 |
| Energy industry | 2 |