“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	China Water Engineering Association China Water Enterprises Confederation China Water Exchange China Water Law Publicity Week China Water Power & Electrification China Water & Power Press China Water Resources Bulletin China Water Resources Strategic Studies China water right system China Weekly Review China Weightlifting Association China Welding Association China western development China wetlands of national importance China wheat mosaic disease China Women Publishing House China Wool Textile Association China Workers Publishing House China Working Dog Management Association China World Association for Chinese Literatures China World Cultural Heritage Expert Consultation Management Measures China World Heritage China Writers China Written Works Copyright Society China Wuhan Han Opera Theatre

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。