“Helix Nebula”的概念、定义、翻译、参考文献-科学参考

单词	Helix Nebula
释义	Helix Nebula Encyclopedia 理学行星状星云释 Helix Nebula螺旋星云位于宝瓶座，标准历元J2000的赤经22h29m38.54s，赤纬-20°50′13.64″的行星状星云。《星云星团新总表》中的编号为NGC7293，是离地球最近最明亮的行星状星云。 Astronomy Helix Nebula螺旋星云
随便看	grotto grotto engineering grottoes at Goddess Nüwa Palace grottoes at Guangyuan Huangze Temple grottoes at Guangyuan Thousand-Buddha Precipice grottoes at Huayan Cave grottoes at northen Shaanxi grottoes at Qianfo Mountain of Ji’nan City grottoes at Wanfo Cave grottoes in the Mingshansi Monastery grottoes of Shihong Temple grottoes of Shuiyu Temple grottos and murals of scenic regions groud state energy ground ground absorption ground access to the protective shed ground-airborne electromagnetic instrument ground anemometer ground atom ground-based astronomy ground based augmentation system ground-based augmentation systems Ground-based Boxing ground-based integrated observation 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。