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选矿 : 400 phrase in 16 subjects |
Business | 1 |
Chemistry | 13 |
Construction | 1 |
Drilling | 1 |
Economy | 2 |
Electronics | 4 |
General | 180 |
Geology | 14 |
Metallurgy | 19 |
Mineralogy | 1 |
Mining | 36 |
Oil / petroleum | 1 |
Oil and gas | 1 |
Oil processing plants | 8 |
Oilfields | 1 |
Technology | 117 |