V2EX oblate

Oblate

释义 Definition

oblate(形容词):扁球形的;两极略扁、赤道略鼓的(常用于“oblate spheroid / 扁球体”,如地球的形状)。
(也可作名词 oblate:指“修士/献身者(在修道院或宗教团体中奉献服务的人)”,但较少见。)

发音 Pronunciation

/blet/

例句 Examples

The Earth is not a perfect sphere; it is slightly oblate.
地球不是完美的球体;它是略微扁球形的。

Because the planet spins quickly, it becomes an oblate spheroid with a wider equator and flatter poles.
由于行星自转很快,它会变成赤道更宽、两极更扁的扁球体。

词源 Etymology

来自拉丁语 oblatus(“带来、呈献的”),源自 offerre(“提供、呈上”)。在英语中它一方面发展出宗教含义(“奉献者/献身者”),另一方面在科学语境里用来描述一种“相对球体被压扁”的形状(与“拉长的”相对)。

相关词 Related Words

文学与著名作品 Literary Works

  • Carl Sagan《Cosmos》(科普写作中常见用 oblate 描述行星形状与自转效应)
  • Stephen Hawking《A Brief History of Time》(涉及天体与宇宙学时常出现此类形状术语)
  • 各类地球科学与天文学教材/论文(如讨论“Earth as an oblate spheroid / 地球为扁球体”的章节与条目中高频出现)
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