观测站 : 222 phrases in 24 subjects |
Agriculture | 4 |
Bridge construction | 2 |
Business | 1 |
Construction | 1 |
Desert science | 5 |
Earth sciences | 28 |
Ecology | 1 |
Electronics | 10 |
Engineering geology | 6 |
Explosives and Explosive Ordnance Disposal | 2 |
Forestry | 1 |
General | 1 |
Geology | 1 |
Geophysics | 4 |
Hydroelectric power stations | 11 |
Military | 2 |
Navigation | 4 |
Oil / petroleum | 2 |
Shipbuilding | 2 |
Space | 16 |
Technology | 110 |
United Nations | 2 |
United States | 2 |
Wind Energy | 4 |