V2EX gas giant

Gas Giant

释义 Definition

气态巨行星:主要由氢和氦等气体构成、体积和质量都很大的行星类型,通常没有清晰的固体表面(如木星、土星)。在更广义的用法中有时也包括更冷、更外层富含挥发物的“冰巨行星”(如天王星、海王星),但严格说它们常被单独分类。

发音 Pronunciation

/s dant/

例句 Examples

A gas giant has many moons.
气态巨行星通常有很多卫星。

Scientists think some gas giant planets may have rocky cores hidden beneath thick layers of gas.
科学家认为一些气态巨行星在厚厚的气体层之下可能隐藏着岩石核心。

词源 Etymology

“Gas”意为“气体”,来源于17世纪的科学用语;“giant”意为“巨大的、巨人”,源自古法语并追溯到拉丁语词根。组合成“gas giant”用于天文学分类,强调这类行星“以气体为主且体量巨大”的特征。

相关词 Related Words

文学与作品 Notable Works

  • Carl Sagan《Cosmos》:讨论太阳系行星类型时会涉及木星、土星等气态巨行星。
  • Stephen Hawking《A Brief History of Time》(科普语境中常提及行星与宇宙结构,相关版本/章节可能出现该术语)。
  • James S. A. Corey《The Expanse》(《太空无垠》系列):大量行星与外太阳系背景描写中常见“gas giant”等天文学术语。
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