speed of light

英 美
  • 光速
Noun:
  1. the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second

    1. The speed of light is an important constant.
      光速是一个重要的常数。

speed of light的相关资料:

【邻近词汇】