photometer
柯林斯词典
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
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photometer /fəʊˈtɒmɪtə/
剑桥词典
- a piece of equipment used by scientists to measure the strength of light
光度計，測光表 返回 photometer