一光年 meaning in Chinese
one light year
Examples
- 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。