hertz /ˈhɝts, ˈhɛrts/
  赫,赫茲
  hertz /ˈhɝts, ˈhɛrts/ 名詞
  赫(茲),每秒周數(頻率單位)
  Hertz
       n 1: the unit of frequency; one Hertz has a periodic interval of
            one second [syn: Hz, cycle per second, cycles/second,
             cps, cycle]
       2: German physicist who was the first to produce
          electromagnetic waves artificially (1857-1894) [syn: Heinrich
          Hertz, Heinrich Rudolph Hertz]
       3: German physicist who with James Franck proved the existence
          of the stationary energy states postulated by Bohr
          (1887-1975) [syn: Gustav Hertz, Gustav Ludwig Hertz]