“number of person-days”的概念、定义、翻译、参考文献-科学参考

单词	number of person-days
释义	number of person-days Encyclopedia 工学膳食调查释 number of person-days人日数包括总人日数和个人人日数，是指以被调查对象的一日三餐为标准折合的用餐天数，将每人每日的三餐定义为一个人日。
随便看	yellow azalea flower yellowback seabresm Yellow Banner Sea yellow bedstraw yellow-bellied weasel yellowbelly sea snake yellowbelly threadfin bream yellow bone marrow Yellow Book System of Ming Dynasty yellow broiler Yellow-brown earth yellow bulletins of titled scholars stamped with the imperial seal “Emperor’s Treasure” yellow bulletins of titled scholars submitted to the throne yellow cake yellow card yellow catfish yellow catfish culture yellow catfish＂All-male Release I＂ yellow cattle yellow cheek carp yellowcheek carp Yellow-cinnamon soils yellow clover aphid yellow coating yellow color index

科学参考收录了854744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。