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| unitized design | |||
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| composite structure | |||
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合 成 结 构 : 8 phrases in 6 subjects |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 1 |
| Securities | 1 |
| Technology | 3 |
| Textile industry | 1 |
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