 |
|
automatic loop-back equipment : 6 phrases in 5 subjects |
| Abbreviation | 1 |
| Aeronautics | 2 |
| Computers | 1 |
| Meteorology | 1 |
| Transport | 1 |
|
|
automatic loop-back equipment : 6 phrases in 5 subjects |
| Abbreviation | 1 |
| Aeronautics | 2 |
| Computers | 1 |
| Meteorology | 1 |
| Transport | 1 |