底 图 : 188 phrases in 32 subjects |
Advertising | 1 |
Agriculture | 4 |
Air defense | 1 |
Architecture | 5 |
Automobiles | 5 |
Aviation | 2 |
Bridge construction | 5 |
Business | 2 |
Cartography | 1 |
Chemistry | 1 |
Construction | 1 |
Cultural studies | 1 |
Desert science | 2 |
Earth sciences | 5 |
Economy | 1 |
Engineering geology | 2 |
Explosives and Explosive Ordnance Disposal | 2 |
Fishery fishing industry | 2 |
General | 7 |
Hydroelectric power stations | 2 |
Librarianship | 1 |
Metallurgy | 3 |
Navigation | 2 |
Oil / petroleum | 13 |
Polygraphy | 3 |
Project management | 1 |
Rowing | 1 |
Securities | 1 |
Soil science | 1 |
Space | 6 |
Technology | 103 |
United Nations | 1 |