“cohort observation”概念、定义、翻译-科学时代

单词	cohort observation
释义	人口学词汇手册 cohort observation 同期群观察
随便看	government traffic government transfer payment government transfer payments government troops government undertaking government utility government utility government utility government virtual portal government web site governor governor governor governor governor governor governor governor Governor-General governorship governor valve governor valve governor water pump unit govern the mind gowan

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。