“extra fine sand made of tailings”的概念、定义、翻译、参考文献-科学参考

单词	extra fine sand made of tailings
释义	extra fine sand made of tailings Encyclopedia 工学尾矿建材制品释 extra fine sand made of tailings尾矿特细砂以尾矿为原料，经筛分、水洗等加工过程所生产的细度模数介于1.5～0.7，并且平均粒径介于0.25～0.15毫米的建设用砂。
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