hexennial

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Happening or returning once every six years. not-comparable
    — This hexennial report covers the activities of IAU Commission 36 -- 'Theory of Stellar Atmospheres' -- during the years 2009 to 2015, and will be the last report from this Commission, being replaced by Commission C.G5.
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