spec·tro·pho·tom·e·ter /ˌspɛktrofəˈtɑmətɚ/
  分光光度計
  spec·tro·pho·tom·e·ter /ˌspɛktrofəˈtɑmətɚ/ 名詞
  Spec·tro·pho·tom·e·ter n.
  1. Opt. An instrument for measuring or comparing the intensities of the colors of the spectrum.
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  spectrophotometer
       n : a photometer for comparing two light radiations wavelength
           by wavelength