总流 量 : 86 phrases in 24 subjects |
Agriculture | 1 |
Aviation | 3 |
Beekeeping | 1 |
Business | 4 |
Commerce | 1 |
Desert science | 7 |
Earth sciences | 1 |
Ecology | 1 |
Economy | 1 |
Electronics | 7 |
Engineering geology | 3 |
Exhibitions | 1 |
Finances | 2 |
Geophysics | 1 |
Hydroelectric power stations | 9 |
International Monetary Fund | 1 |
International trade | 1 |
Mining | 1 |
Oil / petroleum | 1 |
Refrigeration | 2 |
Securities | 4 |
Technology | 31 |
Water resources | 1 |
Wind Energy | 1 |