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青材料 : 83 phrases in 10 subjects |
| Architecture | 6 |
| Bridge construction | 1 |
| Construction | 5 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 3 |
| Nautical | 1 |
| Plastics | 1 |
| Polymers | 1 |
| Technology | 63 |
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