“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	Theodosius Dobzhansky Theodosius of Bithynia Theodosius of Bithynia (约公元前160—前100) Theodosius Ⅰ the OECD task force for the safety of novel foods and feeds the OECD’s working group on harmonisation of regulatory oversight in biotechnology The Official Story The official’s election System by their suspension years The offprints of poetic dramas of the Ming and Qing dynasties the offset on the lawsuit Theognis the oil film dynamically properties Theokritos The Old Bachelour The Old Drift The Older One Shouldering the Younger the older one shouldering the younger the oldest allowance the oldest-old The Old Gun The Old Man The Old Man and the Sea The old Musical Instrument Terrace in Wuhan The Old Regime and the Revolution the old urban area in China

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