| English thesaurus | |||
| |||
| The radiotelephony frequency assigned to an aircraft as a first choice for air-ground communication in a radiotelephony network | |||
|
primary : 5 phrases in 1 subject |
| Microsoft | 5 |
| English thesaurus | |||
| |||
| The radiotelephony frequency assigned to an aircraft as a first choice for air-ground communication in a radiotelephony network | |||
|
primary : 5 phrases in 1 subject |
| Microsoft | 5 |