| Filter | |
| gen. | filtro; filtros |
| el. | colector de filtro; filtro de frecuencia; filtro; plantilla |
| environ. | separador de polvo; filtros; filtro de polvo |
| mech.eng. | depurador |
|
Nyquist : 18 phrases in 8 subjects |
| Communications | 3 |
| Computer numerical control | 1 |
| Information technology | 2 |
| Mathematics | 2 |
| Measuring instruments | 1 |
| Radio | 3 |
| Statistics | 3 |
| Transport | 3 |