| |||
| catalytic cracking; cat-cracking | |||
| |||
| catalytic cracking | |||
|
cracking catalitico : 3 phrases, 2 sujets |
| Chimie | 1 |
| Pétrole / pétrole | 2 |
| |||
| catalytic cracking; cat-cracking | |||
| |||
| catalytic cracking | |||
|
cracking catalitico : 3 phrases, 2 sujets |
| Chimie | 1 |
| Pétrole / pétrole | 2 |