 |
| |||
| frequency hopping/time hopping | |||
|
跳 频/跳时 : 9 phrases in 3 subjects |
| Electronics | 5 |
| Information technology | 1 |
| Space | 3 |
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