“Cretaceous Period”的概念、定义、翻译、参考文献-科学参考

单词	Cretaceous Period
释义	Cretaceous Period Encyclopedia 理学中生代释 Cretaceous Period白垩纪中生代最后一个纪（第三个纪）。约开始于1.37亿年前，结束于0.65亿年前。白垩纪形成的地层称白垩系（Cretaceous System）。
随便看	analytic dependence analytic determinacy analytic differential analytic dynamics analytic element analytic embedding analytic entity analytic enumeration theorem analytic equisingularity analytic equivalence analytic estimate analytic ethics analytic expression analytic extension analytic factorial analytic falsehood analytic family analytic field analytic foliation analytic form analytic formula analytic function analytic functional analytic function algebra analytic function class of bounded mean oscillation

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。