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| воздушное обогащение | |||
| воздушное гравитационное обогащение | |||
| пневматическое обогащение; воздушное обогащение (ископаемого сырья) | |||
| 风力 选 矿: 10 phrases in 3 subjects |
| General | 3 |
| Mining | 2 |
| Technology | 5 |
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