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| underpinning works | |||
| underpinning work | |||
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支撑 工作 : 14 phrases in 6 subjects |
| Architecture | 2 |
| Engineering geology | 2 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Metallurgy | 3 |
| Steel production | 1 |
| Technology | 4 |
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