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| первичный элемент | |||
| первичный датчик; измерительный орган | |||
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| основные элементы | |||
| основной элемент | |||
| 基本元件: 3 phrases in 3 subjects |
| Computers | 1 |
| Nuclear and fusion power | 1 |
| Oil processing plants | 1 |
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