lumens

汉语翻译

词型变化：

英语解释：

名词 lumen:

1. 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
2. a cavity or passage in a tubular organ
   同义词：lumen