预 警 : 514 phrases in 45 subjects |
Agriculture | 1 |
Air defense | 60 |
Automobiles | 2 |
Aviation | 75 |
Business | 3 |
Cartography | 1 |
China | 16 |
Computer networks | 1 |
Computer numerical control | 1 |
Cryptography | 1 |
Desert science | 6 |
Drilling | 1 |
Earth sciences | 9 |
Ecology | 2 |
Economy | 1 |
Electronics | 53 |
Engineering geology | 3 |
Environment | 4 |
Exhibitions | 1 |
Explosives and Explosive Ordnance Disposal | 2 |
Finances | 6 |
Food service and catering | 1 |
General | 45 |
Genetics | 3 |
Hydroelectric power stations | 1 |
Information technology | 2 |
International Monetary Fund | 5 |
Life sciences | 1 |
Metallurgy | 2 |
Name of organization | 18 |
Nautical | 9 |
Navigation | 4 |
Oil / petroleum | 3 |
Oil processing plants | 1 |
Project management | 2 |
Rail transport | 3 |
Securities | 8 |
Shipbuilding | 5 |
Space | 106 |
Technology | 26 |
Telecommunications | 1 |
Transport | 1 |
United Kingdom | 1 |
United Nations | 11 |
United States | 6 |