“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	index of nutritional quality index of polydispersity index of refraction index of relative nullity index of reliability index of road freight transportation quality index of road passenger transportation quality index of road transportation safety index of rotation index of routine analysis for atmospheric pollution index of simplicity index of social progress index of spatial agglomeration index of speciality index of talent index of thousand people index of total isotropy index of underground space planning index of vehicle operation efficiency index of well-being index pair index-preserving projectivity index raising index register index register, modifier register

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。