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transboundary | aquatic ecosystems
| aquatic ecosystem | |
| environ. | ecosistemas acuáticos; ecosistema acuático; hidroecosistema; ecosistemas acuáticos |
| transboundary: 86 phrases in 12 subjects |
| Electronics | 1 |
| Environment | 36 |
| Fishery fishing industry | 3 |
| General | 4 |
| Health care | 2 |
| Law | 2 |
| Meteorology | 1 |
| Name of organization | 9 |
| Nuclear physics | 1 |
| Transport | 10 |
| United Nations | 15 |
| Water resources | 2 |