英语词汇“light hour”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词

light hour

释义

Noun: light hour

The distance light travels in a vacuum in one hour; approximately one billion kilometres

Derived forms: light hours

Type of: astronomy unit

Part of: light year, light-year

Encyclopedia: Light hour

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