echo control
| device
| echo control | |
| pwr.lines. | ekostyrning |
| Devices | |
| comp., MS | Enheter |
| device | |
| gen. | apparat; utrustnin |
| comp., MS | enhet |
| earth.sc. mech.eng. | anordning |
| el. sec.sys. | detalj |
| el.mach. | don |
| |||
| ekostyrning | |||
|
echo control : 4 phrases in 2 subjects |
| Communications | 3 |
| Electronics | 1 |