研究用陕西略阳玄武岩矿石原料生产连续纤维的工艺。
This study intends to form continuous fibers by use of the basalt mine in Lueyang, Shaanxi Province.
在处理同等数量矿石原料的情况下，尤其是当铜在矿石中的含量很高时，新的采铜工艺可比旧式工艺少用40%的电力。
New copper-extracting technologies can use up to 40 percent less electricity than the older method to process the same amount of raw ore, especially when the proportion of copper in the ore is high.
本文针对黑铝土矿的溶出性能做研究，旨在找出最佳溶出条件，以减小由于原料矿石原因造成对生产的不利影响。
The study bases on the digestion performance of black bauxite to find out the optimum condition so as to reduce its harmful effects to production.
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