详细释义
Noun:
-
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
-
a cavity or passage in a tubular organ;
"the lumen of the intestine"
双语例句
- The innermost region of cotton is called lumen.
棉纤维的最内层组织叫内腔。 - 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。
用作名词 (n.)
用法讲解
- lumen bronze 流明青铜合金...
- international lumen [电] 国际流明...
- residual lumen [医] 遗腔
- lumen method 流明法
- lumen sensitivity 流明灵敏度
- bursal lumen 囊腔
- lumen output 光输出,光强...
- double lumen tube 胃十二指肠双腔导管...
- cervical lumen 子宫颈管腔
- lumen alloys 流明合金
相关词汇
- LM 地上移动式无线电设备...
【近义词】
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