“semi-major axis”概念、定义、翻译-科学时代

单词	semi-major axis
释义	机械工程词汇手册 semi-major axis 半长径
随便看	writing exercise writing group writing in an easy and fluent style writing ink writing in the vernacular writing line writing log writing master writing method writing paper writing paper writing paper writing paper writing paper writings in classical Chinese writings in classical Chinese writings in the vernacular writing skill writing style writing style writing style writing system writings，the writing teacher writ of arrest

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