单词	candela
释义	candela noun can·​de·​la kan-ˈdē-lə  -ˈde-  -ˈdā-; ˈkan-də-lə : the base unit of luminous intensity in the International System of Units that is equal to the luminous intensity in a given direction of a source which emits monochromatic radiation of frequency 540 × 1012 hertz and has a radiant intensity in that direction of ¹/₆₈₃ watt per unit solid angle —abbreviation cd called also candle Example Sentences Recent Examples on the Web Specifically, reflection from the headlamps’ housing illuminates two small areas high above the vehicle that, when measured according to federal motor vehicle safety standards, return a result of approximately 450 to 470 candela. Sebastian Blanco, Car and Driver, 5 Mar. 2022 And in the following weeks, a grand candela will anchor a plaza built on the south side of the store's parking lot. Holly Yan, CNN, 29 Oct. 2019 The aluminum then ignites, creating a thunderous noise and flash of up to 184 decibels and nine million candela. Kyle Mizokami, Popular Mechanics, 28 Feb. 2019 Word History Etymology Latin, candle First Known Use 1949, in the meaning defined above Medical Definition candela noun can·​de·​la kan-ˈdē-lə  -ˈdel-ə  : the base unit of luminous intensity in the International System of Units that is equal to the luminous intensity in a given direction of a source which emits monochromatic radiation of frequency 540 × 1012 hertz and has a radiant intensity in that direction of ¹/₆₈₃ watt per unit solid angle —abbreviation cd called also candle
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