“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	solid profile solid propellant solid propellant gas generator solid propellant grain solid propellant rocket motor solid propulsion system solid radioactive waste solid radiowaste solid ramjet rocket engine test solid rocket booster solid rocket divert and attitude control motor solid rocket motor ball-socket nozzle solid rocket motor bead support nozzle solid rocket motor case solid rocket motor combustion chamber solid rocket motor flexible nozzle solid rocket motor ignition device solid rocket motor insulation solid rocket motor nozzle solid rocket motor performance parameters solid rocket motor propellant gain solid rocket motor reversal nozzle solid rocket motor self-destruction device solid rocket motor tailpipe nozzle solid rocket motor test

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。