稳定 层 : 83 phrases in 18 subjects |
Agriculture | 1 |
Aviation | 1 |
Bridge construction | 2 |
Drilling | 3 |
Earth sciences | 6 |
Electronics | 1 |
Engineering geology | 4 |
Explosives and Explosive Ordnance Disposal | 6 |
General | 1 |
Geology | 1 |
Hydroelectric power stations | 4 |
Metallurgy | 2 |
Mining | 1 |
Nautical | 1 |
Oil / petroleum | 6 |
Technology | 34 |
United Nations | 1 |
Wind Energy | 8 |