V2EX reflectivity

Reflectivity

定义 Definition

reflectivity(名词):反射率;反射能力。指某个表面把入射的光、热、声等能量反射回去的比例或程度(常用于物理、光学、材料科学等语境)。也可更宽泛地指“可反射性”。

发音 Pronunciation (IPA)

/riflktvti/

例句 Examples

The reflectivity of snow is very high.
雪的反射率非常高。

Engineers measured the reflectivity of the coated surface to determine how much light the material would bounce back under different angles.
工程师测量了涂层表面的反射率,以确定材料在不同入射角下会反射回多少光。

词源 Etymology

reflectivity 来自 reflect(反射、反映)+ 名词后缀 -ivity(表示性质、状态)。整体字面意思是“具有反射的性质”,在科学语境中进一步固定为“反射率/反射能力”。

相关词 Related Words

文学作品 Literary Works

  • Herman Melville, Moby-Dick(常见“reflection/reflect”等同源词用于描写海面与光影;“reflectivity”这一更偏科学的名词在文学经典中相对少见)
  • Virginia Woolf, To the Lighthouse(作品中大量使用“reflection/reflect”描写光、海与心理“映照”;“reflectivity”作为术语式用法不如同源词常见)
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