“commutative law”概念、定义、翻译-科学时代

单词	commutative law
释义	物理学词汇手册 commutative law 〈数〉交换律
随便看	Draper catalog Draper classification draper conveyor drapery drapes drape scenery draping drastic product drastic purgation drastic purgative drastic sum drastic （purgative） water-expelling medicinal draught draught draught draught draught draught animal draught beer draught beer draught beer draught coefficient draught cupboard draught loss draughtsman

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。