 |
| |||
| μηχανισμός για το χειρισμό των σημάτων; χειρισμός των σημάτων | |||
| control of signals: 8 phrases in 3 subjects |
| Communications | 4 |
| Earth sciences | 2 |
| Transport | 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