 |
| |||
| telegraph vibrating relay | |||
| oscillating relay; vibrating relay; vibrating-reed relay | |||
| oscillation relay; reed-type relay; vibration relay | |||
| вибрационное реле: 5 phrases in 5 subjects |
| Automated equipment | 1 |
| Electrical engineering | 1 |
| Electronics | 1 |
| Technology | 1 |
| Transport | 1 |