英语词汇“astronomical unit”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	astronomical unit
释义	Trends of astronomical unit View usage for: astronomical unit in British English noun a unit of distance used in astronomy equal to the mean distance between the earth and the sun. 1 astronomical unit is equivalent to 1.495 × 1011 metres or about 9.3 × 107 miles astronomical unit in American English Astronomy a unit of length based on the mean distance of the earth from the sun, c. 149.6 million km (c. 93 million mi): light travels this distance in c. 8.3 minutes: abbrev. AU
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英语词典包含298861条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。

Trends ofastronomical unit