“钱塘江阶”的概念、定义、翻译、参考文献-科学参考

单词	钱塘江阶
释义	钱塘江阶 Encyclopedia 理学钱塘江阶释 Qiantangjiangian Stage钱塘江阶中国上奥陶统第二个阶。相当于国际地层表中的凯迪阶的上部。约结束于距今4.456亿年。
随便看	elliptic paraboloid of revolution elliptic partial differential equation elliptic pencil elliptic pencil of circles elliptic pencil of lines elliptic pencil of rays elliptic pencil of spheres elliptic plane elliptic point elliptic polarization elliptic polynomial elliptic pseudo-distance elliptic pseudoprime elliptic quadratic hypersurface elliptic quadratic surface elliptic rational function elliptic ray elliptic region elliptic restricted problem elliptic restricted three-body problem elliptic Riemann surface elliptic rotation elliptic sector elliptic sheaf elliptic shifted factorial

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。