absorption
基礎科學

        spectrum A graph showing theabsorbance by a substance of radiation at dif-ferent wavelengths,usually of ultraviolet,visible,or infrared radiation.It is obtainedusing a SPECTROPHOTOMETER,and cangive information about the identity or quantityof a substance.......（本文共 492 字, 1 張圖）     [閱讀本文] >>