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| 混凝土壳体 | |||
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| 混凝土安全壳 | |||
| 混凝土壳体; 混凝土薄壳 | |||
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concrete-shell : 38 phrases in 4 subjects |
| Electronics | 2 |
| Engineering geology | 1 |
| Perfume | 1 |
| Technology | 34 |
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