candela
/kænˈdɛlə//kænˈdiːlə/
词源链
- 英语English
candela
词源说明
释义
名词noun
- 1In the International System of Units, the base unit of luminous intensity; the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 × 1012 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian