| |||
propagation of radio waves (électromagnétiques) | |||
wave propagation |
propagation des ondes : 29 phrases in 10 subjects |
Coal | 1 |
Construction | 2 |
Earth sciences | 6 |
Electronics | 10 |
General | 1 |
Natural resourses and wildlife conservation | 4 |
Physical sciences | 1 |
Technology | 2 |
Transport | 1 |
United Nations | 1 |