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原煤矿山采出的未经分级的全部产品; 未经选洗的原矿; 一般产品 | |||
原矿; 原煤 | |||
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原矿 |
mine-run: 46 phrases in 11 subjects |
Business | 3 |
Desert science | 1 |
Earth sciences | 2 |
Ecology | 1 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 6 |
General | 4 |
Geology | 2 |
Management | 6 |
Metallurgy | 9 |
Technology | 11 |