hydrotreating
| hydrotreating | |
| oil chem. | Wasserstoffbehandlung; Hydrotreating |
| |||
| Wasserstoffbehandlung m; Hydrotreating m | |||
|
hydrotreating : 9 phrases in 3 subjects |
| Chemistry | 6 |
| Coal | 2 |
| Natural resourses and wildlife conservation | 1 |