“mean life”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	mean life
释义	中医中药词汇手册 mean life 平均寿命
随便看	differential albedo differential amplifer differential amplifier differential analysis Differential Aptitude Test（DAT） differential arm differential association differential association theory differential astrometry differential audit pricing differential bathygraph differential birth rate differential booster differential calculation differential calculus differential calculus differential calculus differential calculus differential catalogue differential centrifugation differential centrifugation differential coefficient differential constraint differential constraint differential contact extractor