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| качество руды; сорт руды | |||
| содержание руды | |||
| содержание в руде | |||
| богатство руды; содержание металла в руде | |||
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矿石品位 : 11 phrases in 4 subjects |
| General | 4 |
| Geology | 1 |
| Metallurgy | 2 |
| Technology | 4 |
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