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lumens

释义

腔, 流明(光通量单位)

英文释义

n 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
n a cavity or passage in a tubular organ

词形变化

原型: lumen 原型变体: s

BNC词频排名: 0 | 当代语料库词频排名: 0