 |
| |||
| direction space-to-earth; down-path; satellite-to-earth path; space-to-earth path | |||
| trayecto descendente: 20 phrases in 3 subjects |
| Communications | 12 |
| Electronics | 6 |
| Information technology | 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