复数： lumina

Lumen depreciation is the decrease in lumen output that occurs as a lamp operates .

流明衰减发生在灯泡点亮过程中流明输出的减少。

The lumen is large , without any narrowing by atheromatous plaque .

腔较大，不伴有动脉粥样硬化斑块引起的管腔狭窄。

Coronary arterial lumen has obvious the dark blood clots .

冠状动脉管腔有明显的暗红色的血栓。

Find worms in the lumen of abomasum or intestine .

皱胃内或肠腔内发现线虫。

A former luminance unit equal to one lumen per square foot .

旧制光的亮度单位等于每平方英尺流明。