Van Allen radiation belt
名词 n.
英文释义
名词 n.
- Either of two torus-shaped areas of high-energy charged particles which partly surround Earth, trapped by its magnetic field. The areas are characterised by intense radiation. When the belts "overload", particles strike the upper atmosphere and fluoresce, causing the polar aurora.
词源
From James Alfred Van Allen, US physicist.
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数据来源: Wiktionary