“志留纪”的概念、定义、翻译、参考文献-科学参考

单词	志留纪
释义	志留纪 Encyclopedia 理学古生代释 Silurian Period志留纪古生代的第三个纪，约开始于4.44亿年前，结束于4.19亿年前。
随便看	free object free occurrence Free Officers Movement free open policy free operator algebra free oscillation free oscillations of the earth free oxygen free particle free path free pendulum free period free pipe free piston engine free-point method free pollination Freeport free port free precession free presentation free pricing strategy free probability free probability theory free problem free product

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。