“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	insymbol insync operation INT int intact intact group sampling intaglio printing intake intake air level intake control system intake duct intake interview intake manifold intake of hydropower station intake port intake structure of pasture water supply project intake structure of pumping station intake system intake with approach channel intake with artificial bend intake without dam intandem intangent intangents circle intangents triangle

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