“人日数”的概念、定义、翻译、参考文献-科学参考

单词	人日数
释义	人日数 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	inverse semigroup element inverse sentence inverse series inverse similarity inverse similitude inverse sine inverse sine function inverse solution of geodetic problem inverse spectral method inverse spectral-transformation inverse spectrum inverse spin Hall effect inverse square law inverse stability theorem inverse Stark effect inverse Stefan problem inverse Sturm-Liouville problem inverse subsemigroup inverse sum of sets inverse suspension polymerization inverse symmetric tensor inverse synchrotron absorption inverse system inverse systems inverse tangent

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。