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secpar什么意思
secpar什么意思、翻译、用法
英语翻译时间：2023/3/2 3:09:03阅读：1037
secpar翻译secparn.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同义词：parsec英英释义secparn.a unit of astronomical