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| steel-frame construction; steel-frame structure | |||
| skeleton construction; steel frame construction; steel frame structure | |||
| 钢 框架 结构: 18 phrases in 4 subjects |
| Explosives and Explosive Ordnance Disposal | 2 |
| Metallurgy | 4 |
| Steel production | 1 |
| Technology | 11 |
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