“secondary document”概念、定义、翻译-科学时代

单词	secondary document
释义	图书馆、情报与文献学词汇手册 secondary document 二次文献
随便看	error of central tendency error of centration error of centration error of classification error of closure error of collimation error of contrast error of division error of estimation error of first kind error of focusing error of graduation error of halo error of inconsistency error of indication error of mean square error of measurement error of measurement error of observation error of observation error of observation error of observation error of pivot error of projection error of recency

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。