standard candle

英 美
  • n.标准烛光
  • candle n.蜡烛;烛形物vt.对光检查
  • standard n.标准;规格;水准;军旗adj.标准的;普通的;规范的;权威的
Noun:
  1. the basic unit of luminous intensity adopted under the Systeme International d'Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,046 degrees Kelvin