sky wave
| propagation
| sky wave | |
| commun. life.sc. | ruimtegolf |
| propagation | |
| agric. | vermenigvuldiging |
| coal. chem. el. | voortplanting |
| comp., MS | doorgifte |
| el. | propagatie |
| hydraul. | voortplanting |
| |||
| ruimtegolf f | |||
|
sky wave : 15 phrases in 2 subjects |
| Electronics | 12 |
| Information technology | 3 |