| |||
main; trunk circuit; trunk line; trunking; mains; tapped line; teed line; water main | |||
main conduit | |||
backbone network | |||
backbone | |||
main line; run pipe | |||
| |||
concentrator trunk | |||
backbone (line) | |||
main conduit (line) | |||
collecting main |
Hauptleitung: 9 phrases in 6 subjects |
Agriculture | 1 |
Communications | 2 |
Construction | 1 |
Electronics | 2 |
General | 1 |
Transport | 2 |