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| обогащение; концентрация | |||
| способ обогащения | |||
| метод обогащения; электростатическое обогащение | |||
| 选矿法: 22 phrases in 7 subjects |
| Chemistry | 2 |
| General | 10 |
| Metallurgy | 1 |
| Mining | 1 |
| Oil processing plants | 1 |
| Oilfields | 1 |
| Technology | 6 |
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