These datas lay a foundation for the separation and recovery of mixed dibasic acids by solvent method and related solid-liquid phase equilibrium research.
该系列溶解度数据的测定为溶剂法分离回收混合二元酸的工业化生产提供了基础数据，也为相关固液相平衡研究奠定了基础。
The permanent magnetic ferrite was prepared by the method of solid phase reaction with the natural magnetite without magnetic separation.
用天然磁铁矿作原料，不进行磁选，直接用固相反应法生产永磁铁氧体。
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