英语词汇parsec怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	parsec
释义	parsec/ˈpɑ:sek/n. a unit of astronomical distance, equal to about 3.25 light years (3.08 × 10¹⁶ metres), the distance at which the mean radius of the earth's orbit subtends an angle of one second of arc 秒差距(等于 3.25 光年) [PARALLAX + SECOND²]
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