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petroleum oil: 85 phrases in 18 subjects |
Agriculture | 1 |
Automobiles | 1 |
Caspian | 2 |
Ecology | 1 |
General | 4 |
Geology | 1 |
Hydraulics | 10 |
Law | 1 |
Mechanic engineering | 1 |
Military | 8 |
Mining | 1 |
Nautical | 1 |
Oil / petroleum | 17 |
Oil and gas | 13 |
Oil processing plants | 7 |
Oils and lubricants | 7 |
Polymers | 1 |
Technology | 8 |