 |
| |||
| track block signalling | |||
| interlocking block | |||
| block signalling | |||
| section blocking; track block signaling; track signalling | |||
| перегонная блокировка: 4 短语, 2 学科 |
| 技术 | 2 |
| 铁路术语 | 2 |
|
| |||
| track block signalling | |||
| interlocking block | |||
| block signalling | |||
| section blocking; track block signaling; track signalling | |||
| перегонная блокировка: 4 短语, 2 学科 |
| 技术 | 2 |
| 铁路术语 | 2 |