“dan, a unit of weight (50 kilograms)”的概念、定义、翻译、参考文献-科学参考

单词	dan, a unit of weight (50 kilograms)
释义	dan, a unit of weight (50 kilograms) 市担
随便看	principal mode principal-mode excitation principal mode of vibration principal moment of inertia principal moments principal moments of inertia principal motion principal moulding principal nilpotent element principal norm principal normal principal normal form principal normal section principal note principal nutation principal optic axis principal orbit principal order principal order module principal orientation direction principal orthogonal system principal oscillation principal parallel principal parameters principal part

科学参考收录了1248194条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。