lumens
音标['lu:mən] lumens是什么意思、lumens怎么读lumens英语解释
名词 lumen:
- a unit of luminous flux equal to the amount of light given out through a solid angle of 1 steradian by a point source of 1 candela intensity radiating uniformly in all directions同义词：lumen, lm
- a cavity or passage in a tubular organ同义词：lumen