 |
| depuración: 159 phrases in 30 subjects |
| Agriculture | 15 |
| Chemistry | 14 |
| Coal | 2 |
| Communications | 1 |
| Construction | 1 |
| Earth sciences | 2 |
| Ecology | 8 |
| Economy | 1 |
| Environment | 50 |
| Fish farming pisciculture | 1 |
| General | 4 |
| Human rights activism | 3 |
| Industry | 7 |
| Information technology | 15 |
| Law | 1 |
| Life sciences | 1 |
| Materials science | 1 |
| Medical | 1 |
| Metallurgy | 1 |
| Microbiology | 1 |
| Microsoft | 5 |
| Natural sciences | 2 |
| Pharmacy and pharmacology | 1 |
| Technology | 4 |
| Textile industry | 2 |
| Transport | 2 |
| United Nations | 6 |
| Waste management | 3 |
| Water resources | 1 |
| Water supply | 3 |