parsec
英
['pɑːsek]
美
['pɑːˌsek]
- n. 表示天体间距离的单位
new
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:
-
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