一光年的英文

one light year

• 一:    one
• 光年:    light year
• 一光:    ikari; ikko; kazum ...

例句与用法

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1. 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。
2. The distance of a light year boggles the imagination
   一光年的距离大得令人难以想象。
3. Do you know how many meters is a light year
   你知道一光年有多少米吗？
4. 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。
5. ? 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。