| Englisch | Spanisch | |
|---|---|---|
| Electricity | ||
| Electricity | background level | movimiento proprio |
| Engineering | ||
| Engineering | background level | nivel de base |
| Chemistry | ||
| Chemistry | background level | nivel de fondo |
| Geology | ||
| Geology | background level | nivel de fondo [m] |
| Telecommunication | ||
| Telecommunication | background level | nivel de fondo |
| Environment | ||
| Environment | background level | nivel de fondo [m] |
| Environment | background level | concentración de fondo [f] |
| Environment | background level | concentración de fondo |
| Environment | background level | nivel de fondo |
| Environment | background level | nivel basal |
| Environment | background level | nivel de trasfondo |
| Environment | background level | nivel antecedente |
| Energy | ||
| Energy | background level | nivel de fondo |
| Englisch | Spanisch | |
|---|---|---|
| Electricity | ||
| Electricity | intrinsic background level | nivel de ruido de fondo intrínseco |
| Engineering | ||
| Engineering | background noise level | nivel de ruido de fondo |