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raw and semifinished materials industry
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raw and semifinished materials industry
Encyclopedia
经济学
分水岭工业
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raw and semifinished materials industry
原料工业
直接对采掘工业的产品进行加工,生产各种原材料的工业部门总称。是为制造业提供原材料的工业部门。又称原材料工业。
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