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| 开口腹板 | |||
| 空腹板; 空腹的; 空腹构件 | |||
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| 空腹的 | |||
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open web : 29 phrases in 7 subjects |
| Architecture | 1 |
| Bridge construction | 2 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Multimedia | 1 |
| Technology | 21 |
| Wind Energy | 1 |
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