| |||
| помеха от земной поверхности (Konstantin 1966) | |||
|
interference from the Earth's surface : 2 phrases in 1 subject |
| Aviation | 2 |
| |||
| помеха от земной поверхности (Konstantin 1966) | |||
|
interference from the Earth's surface : 2 phrases in 1 subject |
| Aviation | 2 |