反循 环 : 233 phrases in 26 subjects |
Agriculture | 5 |
Bridge construction | 5 |
Business | 1 |
Chemistry | 2 |
Desert science | 2 |
Drilling | 12 |
Earth sciences | 6 |
Ecology | 5 |
Economy | 1 |
Electronics | 15 |
Engineering geology | 17 |
Explosives and Explosive Ordnance Disposal | 5 |
General | 1 |
Genetics | 2 |
Hydroelectric power stations | 3 |
Information technology | 1 |
Management | 2 |
Mechanics | 3 |
Metallurgy | 2 |
Nautical | 1 |
Nuclear physics | 5 |
Oil / petroleum | 40 |
Space | 2 |
Sports | 1 |
Technology | 86 |
Water resources | 8 |