“行星状星云”的概念、定义、翻译、参考文献-科学参考

单词	行星状星云
释义	行星状星云 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 全称：planetary nebula。缩写：PN行星状星云
随便看	spatial knowledge discovery spatial level of urban master planning spatial light modulator spatial linkage of economic activity spatial locale spatial locality spatiallocationofeconomicactivities spatial logics spatially closed metric spatially coherent light spatially homogeneous spatially homogeneous process spatially-induced dispersion spatially isomorphic spatially isomorphic flow spatially open metric spatially-oriented hyperplane spatially-oriented surface spatial masking effect spatial mass segregation spatial measuring and calculation spatial memory spatial metadata spatial metaphor spatial model

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。