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The stability of cemented backfill mass is important to keep miners and equipment safe in underground backfill miming.Th......
根据研究La1/3(CaxBa1-x)2/3MnO3多晶材料温度及磁场特性的需要,设计一套高低温电阻、磁电阻测量系统.测量结果分析表明该系统是可......