| Englisch | Spanisch | |
|---|---|---|
| Engineering | ||
| Engineering | null indicator | indicador de cero |
| Engineering | null indicator | indicador de punto de corriente nula |
| Aeronautics | ||
| Aeronautics | null indicator | indicador de corriente nula |
| Englisch | Spanisch | |
|---|---|---|
| Engineering | ||
| Engineering | null frequency indicator | frecuencímetro heterodino |
| Engineering | null frequency indicator | indicador de frecuencia cero |