pho·tom·e·try /foˈtɑmətri/
光度測定,測光法
pho·tom·e·try /foˈtɑmətrɪ/ 名詞
光度測定法,光度學
photometry
光度學
Pho·tom·e·try n. That branch of science which treats of the measurement of the intensity of light.
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photometry
n : measurement of the proterties of light (especially luminous
intensity)