“石炭纪”的概念、定义、翻译、参考文献-科学参考

单词	石炭纪
释义	石炭纪 Encyclopedia 理学古生代释 Carboniferous Period石炭纪古生代的第五个纪，约开始于3.59亿年前,结束于2.99亿年前。 Biology Carboniferous石炭纪
随便看	Associations association scheme Associations Group association study association test associative associative 3-form associative agnosia associative algebra associative array associative calculus associative center associative-commutative ring associative envelope associative ionization associative lattice associative law associative law of addition associative law of multiplication associative learning associative magic square associative memory associativeness associative network associative nitrogen fixation

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。