 |
| |||
| courant d'alimentation de sonnerie; courant d'appel | |||
| courant de sonnerie | |||
| |||
| anneau de courants; courant annulaire | |||
|
ringing current : 6 phrases in 5 subjects |
| Electronics | 1 |
| Information technology | 2 |
| Measuring instruments | 1 |
| Mechanic engineering | 1 |
| Telecommunications | 1 |