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lumen

  擴容基本詞匯  
['lu?men]     ['lu?men]    
  • n. 內腔;流明(光流的強度單位)
lumena lumens
new

lumen的英文翻譯是什么意思,詞典釋義與在線翻譯:

英英釋義

Noun:
  1. 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
  2. a cavity or passage in a tubular organ;

    "the lumen of the intestine"

lumen的用法和樣例:

例句

用作名詞 (n.)
  1. The innermost region of cotton is called lumen.
    棉纖維的最內層組織叫內腔。
  2. A former luminance unit equals to one lumen per square foot.
    舊制光的亮度單位等于每平方英尺流明。

詞匯搭配

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