“白垩纪”的概念、定义、翻译、参考文献-科学参考

单词	白垩纪
释义	白垩纪 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）。 Biology Cretaceous白垩纪
随便看	cluster innovation cluster integral cluster mallow fruit cluster member cluster model cluster model' cluster Monte Carlo method cluster Monte Carlo methods cluster multiple warhead cluster munitions cluster nebula cluster normalization cluster of differentiation cluster of galaxies cluster of nebulae cluster of stars cluster of stone pagodas at Yunju Temple cluster of workstations cluster of workstations, COW cluster open framework cluster operator cluster organic framework cluster parallax cluster perimeter cluster point

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。