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absorptance [əb'sɔ:ptəns]    添加到生词本 复制网址
基本释义
  • n. 吸收比
英英解释

  • 　1个名词解释

    1. a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber
      [同] absorptance, absorption coefficient, coefficient of absorption
      [例]
      • absorptance equals 1 minus transmittance