“上导数”概念、定义、翻译-科学时代

单词	上导数
释义	数学词汇手册上导数 upper derivative
随便看	return trajectory return transfer oscillation return trip charter return tube return value return valve plug return velocity return visit return visit return visits return water return water return water collecting header return water discharge outlet of swimming pool return water main return wave retype Reuleaux reuniens nucleus reunification reunion reunion Reunion event re-urbanization reus

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。