drainage well: 29 phrases in 13 subjects |
British usage, not spelling | 1 |
Construction | 3 |
Ecology | 2 |
Electronics | 2 |
Geology | 1 |
Hydraulic engineering | 1 |
Makarov | 3 |
Mining | 2 |
Oil / petroleum | 4 |
Oil and gas | 4 |
Oil and gas technology | 3 |
Oilfields | 1 |
Technology | 2 |