“猎户座大星云”的概念、定义、翻译、参考文献-科学参考

单词	猎户座大星云
释义	猎户座大星云 Encyclopedia 理学发射星云释 Orion nebula猎户座大星云位于猎户座的发射星云。用肉眼观察，猎户座中构成“宝剑”的有三颗星，中间一颗是较模糊的亮斑，它不是单颗星，而是一个星云，即猎户座大星云（星表编号为M42和NGC1976）。
随便看	biological population theories biological porous flow biological preparation technology biological pretreatment biological process of marine pollutant biological production of hydrogen biological productivity biological pump biological purification biological purification for waste gas biological purification of water body biological radiosensitivity biological reclamation of mine land biological redox standard state biological reference materials biological regionalism biological regulation networks biological regulation theory biological residue in fishery organisms biological residue monitoring Biological Resource Center of Institute Pasteur biological resources in China biological response modifiers biological rhythm biological rhythm alteration induced by space radiation

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。