英语词汇“parsec”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	parsec
释义	par·sec (pärsĕk′) n. A unit of astronomical length based on the distance from Earth at which stellar parallax is one second of arc and equal to 3.258 light-years, 3.086 × 10¹³ kilometers, or 1.918 × 10¹³ miles. [PAR(ALLAX) + SEC(OND)¹.]
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