lumen
noun#34,764
Translations
- 内腔ないこう
- ルーメンルーメン
- 管腔かんくう
- 解離腔かいりくう
English definition
- 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
Examples
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