允许误差: 19 phrases in 13 subjects |
Aviation | 1 |
Business | 1 |
Drilling | 1 |
Earth sciences | 1 |
Economy | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Finances | 1 |
General | 2 |
Hydroelectric power stations | 2 |
Oil / petroleum | 1 |
Space | 1 |
Technology | 4 |
Wind Energy | 2 |