“有效天数”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	有效天数
释义	物流与仓储词汇手册 days when available 有效天数
随便看	direct adaptive fuzzy control direct additional direct additional charge direct address direct addressing direct addressing direct-address lead direct advertising direct air conditioning system direct allocation method direct ammonium sulphate recovery direct ancestor direct and indirect energy conversion direct and inverse proportion direct appointment direct appointment to promotion ranks direct appointment without advertisement direct approach direct approach direct arbitrage direct arc furnace Direct Art direct attached storage direct attached storage (DAS) direct attached storage--direct attached storage (DAS)

days when available