ground-wave
| mode of propagation
| ground wave | |
| astr. | onde de sol |
| commun. | onde directe |
| commun. transp. | onde de surface |
| mode of propagation | |
| el. | mode de propagation; mode progressif; mode de propagation ionosphérique |
| |||
| onde de sol | |||
| onde directe | |||
| onde de surface | |||
| onde de diffraction | |||
|
ground-wave : 19 phrases in 3 subjects |
| Communications | 13 |
| Electronics | 5 |
| Information technology | 1 |