photometer
US /foʊˈtɑː.mə.t̬ɚ/
UK /fəʊˈtɒm.ɪ.tər/
名词
光度计
an instrument for measuring the intensity of light
示例:
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The photographer used a photometer to determine the correct exposure settings.
摄影师使用光度计来确定正确的曝光设置。
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Scientists employed a sensitive photometer to measure the faint light from distant stars.
科学家们使用灵敏的光度计来测量遥远恒星的微弱光线。