“Ring Nebula”的概念、定义、翻译、参考文献-科学参考

单词	Ring Nebula
释义	Ring Nebula Encyclopedia 理学行星状星云释 Ring Nebula环状星云位于天琴座的典型的行星状星云。星表中的编号为M57和NGC6720。位于北天区，距离地球2300光年，目视星等8.8，半径约1.3光年。由于面向地球呈环状结构，并处于明亮的织女星以南，长期以来备受关注。 Astronomy Ring Nebula指环星云
随便看	Fight Club fighter fighter-bomber Fight for Army Provisions Fight for Moscow fighting behavior of livestock Fighting in Northern Shaanxi Fighting in the South of the City fighting movement of the commanding general after winning a battle fighting movements with three or more people in both parties Fighting On The Plains fighting the crime of abducting and trafficking children Fight of Old Mir fight or flight fight or flight response fight with weapons between groups of people Fight Zhujiazhuang three times figitids fig-marigold family figo michelia figural after-effect figural aftereffect figural number figural perception figurate number

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。