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| 1/2峁共问; 结构参数 | |||
| 构造参数 | |||
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| 结构参数 | |||
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structural parameter : 7 phrases in 4 subjects |
| Ecology | 1 |
| Economy | 2 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Technology | 3 |
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