安全 系 数 : 188 phrases in 28 subjects |
Air defense | 2 |
Architecture | 1 |
Automobiles | 8 |
Aviation | 10 |
Bridge construction | 19 |
Business | 4 |
Chemistry | 2 |
Computer networks | 1 |
Computer numerical control | 1 |
Cryptography | 1 |
Earth sciences | 4 |
Economy | 3 |
Electronics | 9 |
Engineering geology | 9 |
Explosives and Explosive Ordnance Disposal | 2 |
General | 2 |
Geophysics | 1 |
Hydroelectric power stations | 8 |
Information technology | 3 |
Management | 1 |
Metallurgy | 6 |
Nuclear physics | 1 |
Oil / petroleum | 3 |
Project management | 1 |
Space | 13 |
Technology | 68 |
Telecommunications | 1 |
Wind Energy | 4 |