“semi-major axis”概念、定义、翻译-科学时代

单词	semi-major axis
释义	航空航天词汇手册 semi-major axis 半长轴
随便看	equivalence of simple deontic propositions equivalence of symbols equivalence of symbols equivalence of valuations equivalence operation equivalence point equivalence principle equivalence principle equivalence principle equivalence relation equivalence relation equivalence relation equivalence relation equivalence scale equivalence technique equivalence theory equivalence transformation equivalency equivalency programme equivalency test equivalent equivalent Equivalent equivalent equivalent

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

semi-major axis