| Subject | English | Portuguese |
| gen. | village water-engineering microprojects | microprojetos hidráulicos locais |
| environ., chem., el. | water engineering | economia das águas |
| environ., chem., el. | water engineering | gestão dos recursos hídricos |
| environ., chem., el. | water engineering | economia hídrica |
| environ., chem., el. | water engineering | administração dos recursos hídricos |
| agric., construct. | water engineering | obras de irrigação |
| lab.law., industr. | water-engineering work | obra hidráulica |