 |
| |||
| contact treatment | |||
| contact refining | |||
| contacting; contact filtration (смазочных масел отбеливающими глинами) | |||
| контактная очистка: 12 phrases in 8 subjects |
| Chemistry | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Medical | 1 |
| Medical appliances | 1 |
| Oil and gas | 2 |
| Polymers | 1 |
| Technology | 4 |