 |
| |||
| water-purifying plant | |||
| installation d'épuration d'eau: 15 phrases in 4 subjects |
| Construction | 3 |
| Environment | 5 |
| Medical | 1 |
| Natural resourses and wildlife conservation | 6 |
|
| |||
| water-purifying plant | |||
| installation d'épuration d'eau: 15 phrases in 4 subjects |
| Construction | 3 |
| Environment | 5 |
| Medical | 1 |
| Natural resourses and wildlife conservation | 6 |