lumen

lumen读音音标

英 [ˈlu:men]

美 [ˈlumən]

lumen意思解释

n.

流明（光通量单位）；

[植物]（管）腔；

变形

复数：lumina

英英释义

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

同义词：lm

a cavity or passage in a tubular organ

\"the lumen of the intestine\"

双语例句

用作名词(n.)The innermost region of cotton is called lumen.棉纤维的*内层组织叫内腔。A former luminance unit equals to one lumen per square foot.旧制光的亮度单位等于每平方英尺流明。