“备份体系”概念、定义、翻译-科学时代

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。

单词	备份体系
释义	电子商务词汇手册 backup hierarchy 备份体系
随便看	direction direction direction directional aerial directional aerial directional aerial directional analysis directional antenna directional antenna directional antenna of fuze directional automatic realignment of trajectory directional automatic realignment of trajectory（DART） directional control directional correlation of successive gamma rays directional counter directional coupler directional crystallization directional crystallization blade directional data directional derivative directional drilling directional effect directional emissivity directional felling directional focusing

backup hierarchy