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| 采矿废物 | |||
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| 采矿废水 | |||
| 矿场残渣; 开矿废渣 | |||
| 采矿废弃物 | |||
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mining wastes : 10 phrases in 3 subjects |
| Ecology | 5 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Technology | 4 |
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