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词汇 noble gas
释义 noble gasn.(名词)
  1. Any of the elements in Group O of the periodic table, including helium, neon, argon, krypton, xenon, and radon, which are monatomic and with limited exceptions chemically inert. Also called inert gas 惰性气体:元素周期表中O族元素的任何一个,包括氦、氖、氩、氪、氙、氢,它们都为单元子。除有限的几个除外,化学上无活性 也作 inert gas
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