 |
| |||
| circuit de retour; circuit de retour du courant | |||
|
return circuit : 12 phrases in 6 subjects |
| Communications | 5 |
| Computers | 1 |
| Earth sciences | 1 |
| General | 2 |
| Natural sciences | 1 |
| Telegraphy | 2 |
|
| |||
| circuit de retour; circuit de retour du courant | |||
|
return circuit : 12 phrases in 6 subjects |
| Communications | 5 |
| Computers | 1 |
| Earth sciences | 1 |
| General | 2 |
| Natural sciences | 1 |
| Telegraphy | 2 |