 |
Automatic Block
| Signal system
- only individual words found
| automatic block | |
| railw. sec.sys. | 自動閉そく式 |
| signal system | |
| tech. | 信号システム |
| |||
| 自動閉そく式 | |||
|
Automatic Block : 2 phrases in 1 subject |
| Rail transport | 2 |