| |||
| слой E (ионосферы) | |||
|
Heaviside-Kennelly layer : 11 phrases in 7 subjects |
| Astronautics | 2 |
| Electronics | 1 |
| Geophysics | 1 |
| Makarov | 2 |
| Mass media | 3 |
| Physics | 1 |
| Technology | 1 |
| |||
| слой E (ионосферы) | |||
|
Heaviside-Kennelly layer : 11 phrases in 7 subjects |
| Astronautics | 2 |
| Electronics | 1 |
| Geophysics | 1 |
| Makarov | 2 |
| Mass media | 3 |
| Physics | 1 |
| Technology | 1 |