 |
| |||
| frequency group | |||
|
频群 : 41 phrases in 10 subjects |
| Air defense | 10 |
| Electronics | 8 |
| General | 1 |
| Information technology | 3 |
| Metallurgy | 1 |
| Multimedia | 1 |
| Oil / petroleum | 2 |
| Space | 2 |
| Technology | 11 |
| Telecommunications | 2 |
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