 |
| |||
| 调频频带波段 | |||
|
frequency modulation band : 10 phrases in 8 subjects |
| Aviation | 2 |
| Geophysics | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Radio | 2 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 1 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips