复合钢 : 92 phrases in 15 subjects |
Architecture | 2 |
Automobiles | 4 |
Bridge construction | 1 |
Construction | 1 |
Drilling | 1 |
Electronics | 3 |
Explosives and Explosive Ordnance Disposal | 1 |
Hydroelectric power stations | 1 |
Metallurgy | 45 |
Oil / petroleum | 3 |
Rail transport | 5 |
Refrigeration | 1 |
Shipbuilding | 2 |
Steel production | 3 |
Technology | 19 |