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单词 geocorona
释义

geocorona /dʒi(:)əukə'rəunə//ˌdʒiokəˈronə/

英汉-汉英词典
n. 地冕(主要由氢组成的大气层的最外层)
词组 | 习惯用语
您要查找的是不是:
  • coronation n. 加冕礼
  • juggernaut n. 摧毁一切的强大力量; 重型卡车
  • coronate vt. 加冕

网络短语:
geocorona 地冕; 氢气层;
geocorona emission 地冕发射
英语百科

Geocorona

The geocorona is the luminous part of the outermost region of the Earth's atmosphere, the exosphere. It is seen primarily via far-ultraviolet light (Lyman-alpha) from the Sun that is scattered from neutral hydrogen. It extends to at least 15.5 Earth radii. The geocorona has been studied from outer space by the Astrid satellites and the Galileo spacecraft (among others), using its ultraviolet spectrometer (UVS) during an Earth flyby.

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更新时间:2025/6/19 5:16:11