central areas: 42 phrases in 20 subjects |
Economy | 1 |
Electronics | 3 |
Energy industry | 3 |
Environment | 1 |
General | 5 |
Geology | 1 |
Information technology | 2 |
International Monetary Fund | 1 |
Mass media | 1 |
Medical | 1 |
Military | 5 |
Oil and gas technology | 1 |
Oilfields | 1 |
Paleontology | 1 |
Pulp and paper industry | 1 |
Sociology | 4 |
Technology | 7 |
Television | 1 |
United Nations | 1 |
Weapons of mass destruction | 1 |