检波器 : 716 phrases in 35 subjects |
Air defense | 53 |
Architecture | 2 |
Automated equipment | 1 |
Aviation | 14 |
Business | 3 |
Chemistry | 2 |
Communications | 4 |
Construction | 11 |
Drilling | 3 |
Earth sciences | 12 |
Ecology | 2 |
Electric machinery | 1 |
Electronics | 29 |
Engineering geology | 8 |
Explosives and Explosive Ordnance Disposal | 2 |
General | 33 |
Geophysics | 24 |
Information technology | 9 |
Latin | 1 |
Magnetics | 1 |
Metallurgy | 11 |
Military | 1 |
Nautical | 1 |
Navigation | 3 |
Oil / petroleum | 209 |
Project management | 1 |
Radio | 3 |
Rail transport | 1 |
Shipbuilding | 10 |
Space | 35 |
Sports | 1 |
Surgery | 1 |
Technology | 216 |
Telecommunications | 6 |
United Nations | 2 |