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| повторяющееся звено; элементарное звено | |||
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| элемент конструкции | |||
| унифицированный узел | |||
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结构 单元 : 21 phrases in 5 subjects |
| Automobiles | 1 |
| Aviation | 3 |
| Electronics | 1 |
| General | 5 |
| Technology | 11 |
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