V2EX spheroidal

Spheroidal

释义 Definition

(形容词)类球形的;近似球体的(常指略呈扁球体 oblate 或长球体 prolate 的形状)。在地球科学、天文学、几何学与工程语境中常见。

例句 Examples

The planet looks spheroidal from space.
从太空看,这颗行星呈类球形。

Because of its rotation, Earth is not perfectly spherical but slightly spheroidal, with a small equatorial bulge.
由于自转,地球并非完全球形,而是略呈类球形,在赤道处有轻微的隆起。

发音 Pronunciation

/sfr.dl/

词源 Etymology

spheroidal 来自 spheroid(球状体)+ 形容词后缀 -al(“……的”)。而 spheroid 源于希腊语词根 sphaira(“球、球体”)。整体含义就是“像球(但不一定完美球形)的”。

相关词 Related Words

文学与经典作品 Literary Works

  • Isaac Newton Philosophi Naturalis Principia Mathematica(常在相关英译与讨论地球形状的段落中出现“spheroidal”一类表述)
  • James Clerk Maxwell A Treatise on Electricity and Magnetism(涉及“spheroidal”坐标/谐函数等表述)
  • Sir George Biddell Airy On the Figure of the Earth(地球测量与地球形状讨论中常用该词)
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