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planetary nebula

  • [天] 行星状星云

网络释义专业释义英英释义

  [天] 行星状星云

行星状星云(planetary nebula,PN)是质量小于8倍太阳质量的恒星演化到生命晚期,逐渐膨胀成红巨星阶段时,外层大气物质向太空逐渐扩张的结果,通常呈现同心圆状...

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短语

bipolar planetary nebula 双极行星状星云 ; 行星状星云

proto-planetary nebula 原行星状星云 ; 原始行星状星云

The Rotten Egg Planetary Nebula 行星状星云

Blinking Planetary Nebula 英语

Blue Planetary Nebula 英语

pre-planetary nebula 前行星状星云

bipolar r planetary nebula 双极行星状星云

Planetary nebula luminosity function 行星状星云亮度函数

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  • 行星状星云 - 引用次数:1

    参考来源 - 流体及磁流体力学在天体物理中的应用
  • 行星状星云

·2,447,543篇论文数据,部分数据来源于NoteExpress

planetary nebula

  • n. a nebula that was once thought to be a star with its planets but is now thought to be a very hot star surrounded by an expanding envelope of ionized gases that emit a fluorescent glow because of intense radiation from the star

以上来源于: WordNet

 柯林斯英汉双解大词典 

planetary nebula

  • 1. 

    N an expanding shell of gas surrounding a dying star, formed from matter ejected from the star's outer layers; the gas is ionized by the remaining hot stellar core, emitting light in the process 行星状星云

双语例句

  • See photos of new planetary nebula.

    查看新的关于行星云团照片

    article.yeeyan.org

  • The Eskimo nebula is clearly a planetary nebula.

    爱斯基摩星云显然一个行星星云。

    www.youdict.com

  • Our own sun will blossom into a planetary nebula when it dies in about five billion years.

    大约50亿年后我们太阳死去也会变成行星状星云

    article.yeeyan.org

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