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| 圆形壳体; 拱顶; 薄拱顶; 薄壳屋顶; 薄壳顶 | |||
| 薄壳拱顶; 拱形薄壳 | |||
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свод-оболочка : 3 phrases in 2 subjects |
| Electronics | 2 |
| General | 1 |
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