“halcyon days”的概念、定义、翻译、参考文献-科学参考

单词	halcyon days
释义	halcyon days 平安时期
随便看	dating forward dating pulse dating routine dating subroutine datolite D atom datometer datugen datum datum axis datum axle datum-centered ellipsoid datum diameter datum drag datum drift datum for reduction of sounding datum grade datum hole datum level datum line datum mark datum node datum of elevation datum of tidal level datum plane

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。