凿井: 146 phrases in 12 subjects |
Architecture | 1 |
Chemistry | 1 |
Construction | 1 |
Earth sciences | 1 |
Engineering geology | 4 |
Explosives and Explosive Ordnance Disposal | 3 |
General | 7 |
Hydroelectric power stations | 5 |
Metallurgy | 2 |
Mining | 1 |
Refrigeration | 1 |
Technology | 119 |