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柯林斯高阶英汉双解学习词典释义
  • N-UNCOUNT
    Magnesium is a light silvery-white metal which burns with a bright white flame.
英汉词典释义
英英词典释义
  • Noun
    1. a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
行业词典
  • 医学: 镁:似银的轻金属元素,符号为Mg,原子序数为12,原子量24.312,比重1.74。镁盐为营养及许多酶的活性所必需,特别是与氧化和磷酸化作用有关的酶。镁为细胞内液与细胞外液之成分,经大小便排泄,血清浓度约2mEq/升。镁缺乏可引起神经系统兴奋性增高,出现手足搐搦、血管扩张、震颤、抑郁及精神病行为;