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

单词	Ordovician Period
释义	Ordovician Period Encyclopedia 理学古生代释 Ordovician Period奥陶纪古生代第二个纪，约开始于4.85亿年前，结束于4.44亿年前。
随便看	electric fishing electric flux electric flux density electric force line electric free enthalpy electric furnace bottom tapping electric furnaces electric generator electric gravity analysis electric heated roll electric heating electric heating digestion apparatus electric heating floor electric heating oil gathering process electric heating radiator electric hoist electric hydraulic control system electric hysteresis effect electric hysteresis loop electric ignition technology electric image electric image method electric incubator electric induction electric initiation

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。