parsec

 
['pɑːsek]     ['pɑːˌsek]    
  • n. 表示天体间距离的单位
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parsec的英文翻译是什么意思,词典释义与在线翻译:

英英释义

Noun:
  1. a unit of astronomical length based on the distance from Earth at which stellar parallax is 1 second of arc; equivalent to 3.262 light years

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