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单词 helium group
释义

helium group


Thesaurus
Noun1.helium group - the series of inert gasesseries - similar things placed in order or happening one after another; "they were investigating a series of bank robberies"

helium group


  • noun

Words related to helium group

noun the series of inert gases

Related Words

  • series
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更新时间:2024/12/22 19:32:30