This paper introduces a patent, which can make the coal fly ash and gangue piled up as the renewable resources, and turn out the tiny-bead products with high attached value.
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美
释义
摘要本文介绍了一项专利技术,可以将堆积如山的粉煤灰、煤矸石作为再生资源,生产高附加值系列微珠产品。
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