“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	Einstein-Cartan theory Einstein characteristic tempenture Einstein characteristic temperature Einstein coefficient Einstein coefficient relationship Einstein convention Einstein crater Einstein cross Einstein curvature tensor Einstein de Broglie relation Einstein-de Broglie relation Einstein de Haas effect Einstein-de Haas effect Einstein-de Sitter cosmological model Einstein-de Sitter model Einstein-de Sitter universe Einstein effect Einstein equation Einstein equations Einstein equivalence principle Einstein field equation Einstein field equations Einstein formula of fluctuation Einstein frequency Einstein function

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