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 Planck's constant /ˈplɑŋ(k)s, ˈplæŋ(k)s-/

 Planck's constant /ˈplæŋ(k)s, ˈplɑŋ(k)s-/ 名詞
 普朗克(氏)常數:表示輻射量子的能量與其頻率的比值,量子常數,普朗克常數,克朗克常數,普朗克(氏)量子常數

 Planck's constant
      n : the constant of proportionality relating the energy of a
          photon to its frequency; approximately 6.626 x 10\-34
          joule-second [syn: h]