“物质守恒”概念、定义、翻译-科学时代

单词	物质守恒
释义	哲学词汇手册物质守恒 conservation of matter
随便看	play a duet play age play agent playback playback playback playback playback playback playback playback attack playback head playback robot playback singer playback system playbill playbill playbook playbook playbook play box playboy Playboy play-by-play play date

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。