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一光年的英文

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"一光年"怎么读用"一光年"造句

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  • one light year

例句与用法

  • A light-year is the distance light travels in one year at a speed of 299, 792 kilometers per second .
    一光年是光以每秒299792公里的速度在一年中所走过的距离。
  • The distance of a light year boggles the imagination
    一光年的距离大得令人难以想象。
  • Do you know how many meters is a light year
    你知道一光年有多少米吗?
  • A light - year is about 6 trillion miles , the distance light travels in a year
    一光年大约6百亿亿英里,即光行走一年的距离。
  • ? an approximately one - light - year tall " pillar " of cold hydrogen towers above the wall of the molecular cloud
    顶部? ?一个大约一光年高的冷氢“塔柱”处在分子云墙的上面。
  • [ top ] ? an approximately one - light - year tall " pillar " of cold hydrogen towers above the wall of the molecular cloud
    顶部? ?一个大约一光年高的冷氢“塔柱”处在分子云墙的上面。
  • The observable universe grows by a light - year every year as light from farther away has time to reach us
    可观测宇宙的范围,会因来自更远处的光线到达我们这里而每年向外长大一光年
  • Light year , which is the distance traveled by light in one year . note that light year is a distance scale , not a time scale
    为量度单位,一光年是光在真空中行走一年的距离,紧记光年是距离单位而不是时间单位。
  • These have proven to be elusive subjects of study because existing telescopes do not have the resolution to see within a fraction of a light year of the central supermassive black hole , where these little black holes are thought to be concentrated most heavily
    事实已经证明,这是一个很难研究的课题,因为现有的望眼镜不能看到在特大黑洞一光年以内的东西,那里才是人们所认为的、小黑洞聚集的地方。
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