 |
| |||
| proving of switch blades (Leonid Dzhepko) | |||
| point control switch; switch circuit controller (ssn); switch controller (ssn) | |||
| стрелочный контроллер: 5 phrases in 2 subjects |
| Occupational health & safety | 3 |
| Rail transport | 2 |
|
| |||
| proving of switch blades (Leonid Dzhepko) | |||
| point control switch; switch circuit controller (ssn); switch controller (ssn) | |||
| стрелочный контроллер: 5 phrases in 2 subjects |
| Occupational health & safety | 3 |
| Rail transport | 2 |