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monatomic [ˌmɒnə'tɒmɪk]

adj. （尤指分子）单原子的; 单价的;

例句:

  • Argon is a monatomic gas.
    氩是单原子气体.
  • It is monatomic and extremely inert, forming no known chemical compounds.
    它是单原子,极不活泼, 没有已知的化合物.
  • Helium is a monatomic chemically inert gas.
    它是单原子惰性气体.