bu·tane /ˈbjuˌten/
  丁烷
  bu·tane /ˈbjuˌten/ 名詞
  丁烷
  Bu·tane n.  Chem. An inflammable gaseous saturated hydrocarbon, C4H10, of the marsh gas, or paraffin, series.
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  butane
       n : occurs in natural gas; used in the manufacture of rubber and
           fuels