 |
| |||
разделитель сред (Multi-ply diaphragms or plastic bubbles are often used as media separators  witzenmann.com sunny_disposition) | |||
| media separator: 15 phrases, 6 sujets |
| Exploitation minière | 2 |
| Géologie | 1 |
| Pétrole et gaz | 3 |
| Sakhaline | 2 |
| Technologie | 1 |
| Traitement des minéraux | 6 |