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1.How rational, high-efficient, economy, security carry on the development and utilization of resources of mineral products. It is the question that the mineral resources developer cares about together to reduce losses of resources and dilution of oer and enhances quality of ore. Filling method get heavy development with high ore recovery and low dilution.
如何合理、高效、经济、安全地进行产资源开发利用,降低资源的损失,减少矿石的贫化,提高矿石的质量,是产资源开发者共同关心的问题。收藏指正
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