“Numbers of personal days”的概念、定义、翻译、参考文献-科学参考

单词	Numbers of personal days
释义	Numbers of personal days Encyclopedia 工学膳食调查释 Numbers of personal days个人人日数早餐餐次总数×早餐餐次比，午餐餐次总数×午餐餐次比，晚餐餐次总数×晚餐餐次比三者之和。
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