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| 皮肤结构 | |||
| 平面承载结构 | |||
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skin structure : 13 phrases in 8 subjects |
| Aviation | 1 |
| Plastics | 2 |
| Polymers | 1 |
| Skydiving | 2 |
| Space | 1 |
| Technology | 4 |
| Textile industry | 1 |
| Wind Energy | 1 |
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