 |
| |||
| système d'épuration; système de purification (напр. кабины) | |||
| système de nettoyage | |||
| système de nettoyage (от сорных примесей) | |||
| система очистки: 10 phrases in 5 subjects |
| Automobiles | 1 |
| Environment | 3 |
| Metallurgy | 1 |
| Natural resourses and wildlife conservation | 3 |
| Technology | 2 |