|
band coupling : 6 phrases in 6 subjects |
| Aviation | 1 |
| Construction | 1 |
| Production | 1 |
| Radio | 1 |
| Technology | 1 |
| Telecommunications | 1 |
|
band coupling : 6 phrases in 6 subjects |
| Aviation | 1 |
| Construction | 1 |
| Production | 1 |
| Radio | 1 |
| Technology | 1 |
| Telecommunications | 1 |