| English | Spanish | |
|---|---|---|
| Electricity | ||
| Electricity | horizon focussing | focalización horizontal |
| Electricity | skip distance focussing | focalización a la distancia de salto |
| Electricity | ionospheric focussing | focalización ionosférica |
| Electricity | antipodal focussing | focalización antipodal |
| Electricity | focussing factor | factor de focalización |
| Electrics/Electronics | ||
| Electrics/Electronics | antipodal focussing | focalización antipodal |
| Energy | ||
| Energy | water wave focussing device | concentrador de oleaje |
| Photography | ||
| Photography | focussing-screen | pantalla para poner en foco [f] |
| Photography | focussing-screen | visera para poner en foco [f] |
