“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	primary somatosensory area primary somatosensory cortex primary source primary spectrum primary spectrum, first-order spectrum primary spermatocyte primary stage of socialism primary standard primary standard dosimeter primary standard for airborne sound pressure primary standard for OCTG threads primary standard for sound pressure in water primary standard for ultrasound power primary standard light source primary standard machine of shore hardness primary standard machine of vickers hardness primary standard material primary standard of absorbed dose to water primary standard of air kerma primary standard of angle metrology primary standard of diffuse transmitted visual primary standard of exposure primary standard of flatness primary standard of illuminance primary standard of laser small angle

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。