国际度量系统中的光通量单位，等于一烛光的均匀点光源在单位主体角内发出的光通量

国际度量系统中的光通量单位，等于一烛光的均匀点光源在单位主体角内发出的光通量的英文翻译

基本释义

• the unit of luminous flux in the International System,equal to the amount of light given out through a solid angle by a source of one candela intensity radiating equally in all directions