“夜枭星云”的概念、定义、翻译、参考文献-科学参考

单词	夜枭星云
释义	夜枭星云 Encyclopedia 理学行星状星云释 Owl Nebula夜枭星云位于大熊星座的一个比较复杂的行星状星云。星表中的编号为M97和NGC3587。距离地球2030光年（621秒差距），视星等为9.9，年龄约8千年。又称猫头鹰星云。 Astronomy Owl Nebula夜枭星云
随便看	traffic negative externalities traffic network macroscopic fundamental diagram traffic noise index traffic noise management traffic operation management traffic order traffic organization for large-scale activity traffic organization for work zone traffic organization management planning traffic organization mode traffic padding traffic participants traffic planning traffic policing Traffic pollution Traffic Problem traffic problem traffic psychology traffic restriction in regular areas traffic restriction policy on tail number traffic right-of-way traffic road system traffic rules Traffic safety traffic safety analysis

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。