all-relay interlocking
| with
| geographical
| circuitry
| all relay interlocking | |
| railw. sec.sys. | puesto todo relés |
| with | |
| gen. | con |
| geographical | |
| gen. | geográfico |
| circuitry | |
| gen. | circuitería |
| |||
| puesto todo relés | |||
|
all-relay interlocking : 4 phrases in 2 subjects |
| Communications | 1 |
| Transport | 3 |