“natural system”概念、定义、翻译-科学时代

单词	natural system
释义	社会学词汇手册 natural system 自然体系
随便看	converse digraph converse domain converse effect converse judgement converse law converse law of double negation converse-negative proposition converse probability formula converse proposition converse statement converse terms converse theorem converse theorem converse twist conversion conversion conversion conversion conversion conversion conversion conversion conversion conversion conversion

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。