| |||
| sinal de terminal livre | |||
|
on- hook : 10 phrases in 4 subjects |
| Communications | 5 |
| Electronics | 1 |
| Materials science | 1 |
| Telephony | 3 |
| |||
| sinal de terminal livre | |||
|
on- hook : 10 phrases in 4 subjects |
| Communications | 5 |
| Electronics | 1 |
| Materials science | 1 |
| Telephony | 3 |