concrete pipe: 46 phrases in 13 subjects |
Building structures | 1 |
Caspian | 1 |
Construction | 17 |
Electronics | 7 |
Energy industry | 3 |
Hydraulic engineering | 4 |
Oil / petroleum | 1 |
Oil and gas | 2 |
Pipelines | 1 |
Road works | 1 |
Seismology | 1 |
Technology | 6 |
Water supply | 1 |