| 释义 |
light second
Thesaurus| Noun | 1. | light second - the distance light travels in a vacuum in one second; approximately 300,000 kilometersastronomy unit - a linear unit used for astronomical distanceslight year, light-year - the distance that light travels in a vacuum in 1 year; 5.88 trillion miles or 9.46 trillion kilometers |
light second
Related to light second: light minute, Light-dayWords related to light secondnoun the distance light travels in a vacuum in one secondRelated Words- astronomy unit
- light year
- light-year
|