| 释义 | 
		WordReference English-Chinese Dictionary © 2019: | 主要翻译 |  | lumen nnoun: Refers to person, place, thing, quality, etc.  |  (unit of light flow) (物理学,光通量单位) | 流明  liú míng |  |   | When camping, you need a headlamp with high lumens. |  | lumen nnoun: Refers to person, place, thing, quality, etc.  |  (anatomy: inside of a tube) (解剖学) | 导管内部 
  |  | lumen nnoun: Refers to person, place, thing, quality, etc.  |  (biology: cavity inside a cell) (生物学) | 腔  qiāng |  |   |   | 内腔 
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