“奥尔特云”的概念、定义、翻译、参考文献-科学参考

单词	奥尔特云
释义	奥尔特云 Encyclopedia 理学哈雷彗星释 Oort cloud奥尔特云 1950年，荷兰天文学家J.H.奥尔特根据长周期彗星的轨道特征，认为在离太阳2000～200000个天文单位（AU）处有一个笼罩太阳系的球状包层，其中分布以千亿计的小天体，那里是长周期彗星和哈雷族彗星的诞生地。 Astronomy Oort cloud奥尔特云
随便看	soil moisture conservation in dryland soil moisture conservation in farmland soil moisture constants soil moisture content soil moisture forecasting soil moisture for grassland soil moisture investigation soil moisture-monitoring instrument soil moisture monitoring instruments soil moisture monitoring station soil moisture movement for irrigated grassland soil moisture observation soil moisture regimes soil moisture retaining soil moisture tension soil monitoring soil morphological characteristics soil morphology soil nailing wall soil nailing wall support soil natural residual magnetism soil nematode soil nitrogen soil nitrogen cycle soil nourishing system

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。