“类别”概念、定义、翻译-科学时代

科学时代收录了1160609条科普词条，基本涵盖了常见科普常识及英语词汇的翻译，是科学学习和研究的有利工具。

单词	类别
释义	哲学词汇手册类别 class
随便看	sum of squares sum of squares sum of squares between classes sum of squares of deviation from the mean sum of squares within classes sum-of-subset problem sum-of-the-digits method of depreciation sum-of-the-years-digits depreciation method sum of vectors sum-of-year-digits depreciation (SYD) sum-of-year's-digits depreciation method sump sump sump sump sum payable sum payable sump hole sumping sump pumping sumptuary law sumptuary law sumptuary tax SUMS（single user management system） sum to infinity