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light-year
英 [ˈlaɪt jɪə(r); ˈlaɪt jɜː(r)] 美 [ˈlaɪt jɪr]

  • n. 光年;很长时间

网络释义专业释义英英释义

  光年

光年(light-year) 指光以299,792,458米/秒的速度在真空中1年所走的距离。1光年约相当于94,605亿公里或63,240天文单位。

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短语

Buzz light year 巴斯光年 ; 太空人巴斯光年 ; 巴兹光年

One light year 一光年

Buzz light year Astro Blasters 巴斯光年星际历险

light year 光年

Buzz light year Astro Blaster 巴斯光年星际历险

Buzz light year mission log 巴斯光年任务日志

light- year 光年

Pink light-year 粉色光年

A Million Light Year 一万光年

 更多收起网络短语
  • 光年 - 引用次数:1

    参考来源 - 宇宙演化的综述和因果链

·2,447,543篇论文数据,部分数据来源于NoteExpress

light-year [ 'laitjə: ]

  • n. the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers

    同义词: light year

以上来源于: WordNet

 柯林斯英汉双解大词典 

light year

  • 1. 

    N-COUNT A light year is the distance that light travels in a year. 光年

    例:

    ...a star system millions of light years away.

    …数百万光年之外的一个星系。

  • 2. 

    N-COUNT You can say that two things are light years apart to emphasize a very great difference or a very long distance or period of time between them. (差异) 极大; (距离、年代) 极远 [非正式]

    例:

    She says the French education system is light years ahead of the English one.

    她说法国的教育体制远比英国的先进。

双语例句原声例句权威例句

  • It spans about 3,000 light-years in diameter, compared to the Milky Way's 100,000 light-year diameter.

    它的直径大约为3000光年,而银河系的直径有100000光年。

    youdao

  • This image was produced by combining a dozen Chandra observations made of a 130-light-year region in the center of the Milky Way.

    这张照片是多张钱德拉天文台的照片合成的,显示的是130光年远的银河系的中心部分。

    youdao

  • By 2011 debris in the center of the ring, which is about a light-year in diameter, was blazing more intensely as the supernova entered a new stage of stellar demise.

    到2011年为止,因为这个超新星进入了星球消亡的新阶段,所以这环物质中心直径大约是一光年的碎片燃烧的更加强烈了。

    youdao

更多双语例句
  • Campaigners have slammed the verdict, calling the two-year prison term for the former top managers "too light."

    VOA: standard.2010.06.10

  • The experts expect their one-year global probe into secret detention centers to shine more light on the extensiveness of these facilities and how they operate.

    VOA: standard.2009.03.21

  • The trial of Iraqi journalist Muntader al-Zaidi, who shot to fame after flinging his shoes at former President George Bush during a press conference last December in Baghdad, ended with a relatively light three-year sentence.

    VOA: standard.2009.03.12

  • Gould's estimate of a 15, 000-light-year distance to the new planet is an approximation, and he says he will need more data to refine the number.

    BBC: Artist's concept of a distant world (BBC)

  • Astronomers think there are thousands of fledgling stars in 30 Doradus, a significant fraction of the original generation of stars, packed into a 600-light-year-wide nebula.

    CNN: Stellar nursery in nearby galaxy teems with activity

  • The black holes are separated by an estimated distance of less than a third of a light-year - cheek-to-cheek by black hole standards and significantly closer than the postulated binary system spotted by the Chandra X-ray Observatory in 2003.

    BBC: Dancing black hole twins spotted

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