backward wave
| oscillator
| backward wave | |
| antenn. | tegemoetlopende golf f |
| oscillator | |
| earth.sc. el. | triller |
| el. | trillingskring |
| |||
| tegemoetlopende golf f | |||
| achterwaartse golf | |||
|
backward wave : 4 phrases in 1 subject |
| Electronics | 4 |