柯林斯詞典photometer /f???t?m?t?/ 1. N an instrument used in photometry, usually one that compares the illumination produced by a particular light source with that produced by a standard source 光度計→see also spectrophotometer 返回 photometer劍橋詞典a piece of equipment used by scientists to measure the strength of light 光度計，測光表 返回 photometer