variable frequency
| oscillator
| variable frequency | |
| earth.sc. el. | variabele frequentie |
| oscillator | |
| earth.sc. el. | triller |
| el. | trillingskring |
| |||
| variabele frequentie | |||
|
variable frequency : 7 phrases in 3 subjects |
| Electronics | 3 |
| Mechanic engineering | 2 |
| Transport | 2 |