“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	Newsdays news discovering new security concept News Edition and Translation Agency News Editorial Work new sensibility news ethic news ethics Newseum News Express news facts news film news function news gathering News-gathering techniques News Half an Hour New Shepard sub-orbital manned space vehicle New Siberian Islands news information News informer news infringement News Inspection Standard news inspection system in Enemy-occupied Area news inspection system in the Period of Beiyang Warlords news inspection system of Nanjing Provisional Government

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。