 |
| обработка вод: 51 phrases in 12 subjects |
| Agriculture | 3 |
| Chemistry | 7 |
| Construction | 3 |
| Environment | 1 |
| Food industry | 7 |
| Forestry | 2 |
| Natural resourses and wildlife conservation | 14 |
| Oil and gas technology | 1 |
| Technology | 10 |
| Textile industry | 1 |
| United Nations | 1 |
| Water supply | 1 |