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brown dwarf
[ˌbraʊn ˈdwɔːf]

  • 棕矮星:一种天体物体,比普通恒星要小得多,并且质量不足以维持核聚变,但温度足够高以至于能够辐射能量,尤其是红外波长的能量。

专业释义英英释义

  • 棕矮星
    褐矮星

·2,447,543篇论文数据,部分数据来源于NoteExpress

Brown dwarf

  • abstract: Brown dwarfs are substellar objects too low in mass to sustain hydrogen-1 fusion reactions in their cores, unlike main-sequence stars, which can. They occupy the mass range between the heaviest gas giants and the lightest stars, with an upper limit around 75 to 80 Jupiter masses (MJ).

以上来源于: WordNet

 柯林斯英汉双解大词典 

brown dwarf

  • 1. 

    N a type of celestial body midway in mass between a large planet and a small star 褐矮星

双语例句权威例句

  • Astronomers have named the brown dwarf "WD 0806-661 b".

    文学家将颗“褐矮星命名为“WD 0806 - 661 B”号。

    youdao

  • Even the brown dwarf COROT-3b (22 MJ) is estimated to be about the volume of Jupiter.

    甚至褐矮星corot - 3b(22倍木星质量)估计体积也与木星相差无几。

    youdao

  • The star is a brown dwarf - and formed, like other stars, out of a cloud of dust and gas.

    恒星褐矮星――其他恒星一样,外部由尘埃气体云构成

    youdao

更多双语例句
  • The planet orbits its host star, or brown dwarf, with an orbital radius similar to that of Venus.

    BBC: Tiniest extrasolar planet found

  • If the new object were a captured alien, it could give astronomers their first good look at an extra-solar planet, or a brown dwarf if that is what it turns out to be.

    ECONOMIST: X marks the spot

  • Mr. MIKE BROWN (California Institute of Technology): The largest dwarf planet, please.

    NPR: Pluto, the Un-Planet?

更多权威例句
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