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| iron industry A sector of the economy in which an aggregate of commercial enterprises is engaged in the extraction and refinement of iron ore to produce cast iron, wrought iron and steel (由一些致力于铁矿石开采和提炼以及从事生产铸铁、熟铁和钢的经济部门组成的经济领域。) | |||
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炼铁工业 : 1 phrase in 1 subject |
| Metallurgy | 1 |
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