| 释义 |
light hour
Thesaurus| Noun | 1. | light hour - the distance light travels in a vacuum in one hour; approximately one billion 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 hour
Related to light hour: Light-dayWords related to light hournoun the distance light travels in a vacuum in one hourRelated Words- astronomy unit
- light year
- light-year
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