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| 板架; 交叉梁系 | |||
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| 井字梁; 梁排; 格子梁; 格排梁; 交叉梁系; 网格梁; 板架 | |||
| grillage-beams: 11 phrases in 4 subjects |
| Bridge construction | 1 |
| Engineering geology | 2 |
| Metallurgy | 1 |
| Technology | 7 |
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