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| 无梁楼盖托板 (在无梁楼盖结构中围绕柱顶加厚的托板); 无梁楼盖的柱帽; 托板; 无梁楼盖的柱顶加厚板 | |||
| 柱顶托板 | |||
| drop panel: 4 phrases in 3 subjects |
| Architecture | 1 |
| Metallurgy | 2 |
| Technology | 1 |
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