| |||
| technologie de zéro rejet | |||
|
zero-discharge : 4 phrases in 4 subjects |
| General | 1 |
| Natural resourses and wildlife conservation | 1 |
| Nuclear physics | 1 |
| Water resources | 1 |
| |||
| technologie de zéro rejet | |||
|
zero-discharge : 4 phrases in 4 subjects |
| General | 1 |
| Natural resourses and wildlife conservation | 1 |
| Nuclear physics | 1 |
| Water resources | 1 |