 |
| |||
| segnale di prova | |||
|
señal prueba : 16 phrases in 6 subjects |
| Communications | 5 |
| Electronics | 7 |
| Information technology | 1 |
| Municipal planning | 1 |
| Rail transport | 1 |
| Technology | 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