 |
| |||
| purification capacity | |||
| clearing capacity | |||
| capacité d'épuration: 18 phrases in 4 subjects |
| Environment | 15 |
| Life sciences | 1 |
| Natural resourses and wildlife conservation | 1 |
| United Nations | 1 |
|
| |||
| purification capacity | |||
| clearing capacity | |||
| capacité d'épuration: 18 phrases in 4 subjects |
| Environment | 15 |
| Life sciences | 1 |
| Natural resourses and wildlife conservation | 1 |
| United Nations | 1 |