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| 抛物线型大梁 | |||
| 抛物线形大梁; 抛物线梁; 抛物线大梁 | |||
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| 抛物线型大梁 | |||
| 抛物线形大梁; 抛物线梁; 抛物线大梁 | |||
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parabolic girder : 30 phrases in 2 subjects |
| Architecture | 3 |
| Technology | 27 |
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