 |
| |||
| periodic antenna | |||
|
周期天线 : 31 phrases in 9 subjects |
| Air defense | 3 |
| Communications | 1 |
| Electronics | 13 |
| Information technology | 3 |
| Oil / petroleum | 1 |
| Space | 2 |
| Technology | 6 |
| Telecommunications | 1 |
| United Nations | 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