“planetary nebula”的概念、定义、翻译、参考文献-科学参考

单词	planetary nebula
释义	planetary nebula Encyclopedia 理学行星状星云释 planetary nebula行星状星云其中心有一向白矮星过渡的热星，且由稀薄电离气体组成有明晰边缘的小圆面状星云。星云为该中心星所抛出，正向外膨胀，并由中心星的紫外辐射照射而发光。 Physics 交叉学科天体物理学 planetary nebula行星状星云 Astronomy planetary nebula缩写：PN。行星状星云
随便看	Structural Adjustment Programs structural analysis structural analysis for hydraulic concrete structural analysis method structural analysis of flight vehicle structural analysis of pharmaceuticals structural analysis of rocket structural analysis of spacecraft structural and functional material structural and sampling zero count structural and sequential approach structural angle Structural Anthropology structural anthropology structural automorphism structural basin structural biology structural boundedness structural bridge area/zone structural calculation for hydraulic structures structural capital structural care structural carpentry structural ceramics structural characterization

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