V2EX luminosity

Luminosity

释义 Definition

luminosity(名词):发光度;亮度;光辉。常用于物理、天文学或描述图像/颜色的明暗程度。(另有更专业用法,如“光度(天体的总辐射功率)”。)

发音 Pronunciation

/lumnsti/

例句 Examples

The room’s luminosity increased when she opened the curtains.
她拉开窗帘后,房间的亮度增加了。

Astronomers estimate a star’s luminosity by measuring how much energy it radiates across different wavelengths.
天文学家通过测量恒星在不同波长上辐射的能量来估算它的发光度。

词源 Etymology

源自拉丁语 lūmen(“光”)及其相关词形 lūminōsus(“发光的、明亮的”),后加名词后缀 -ity,表示“……的性质/状态”,因此整体含义为“明亮/发光的性质”。

相关词 Related Words

文学作品 Literary Works

  • The Hound of the Baskervilles Arthur Conan Doyle
  • Frankenstein Mary Shelley
  • The Great Gatsby F. Scott Fitzgerald
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