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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 |
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